Javascript is a programming language that makes websites interactive. It can be used to make games, mobile applications, and web-based software.

In this blog post, you’ll learn about the different use cases for JavaScript as well as some of the ways it’s implemented in projects.

Chrome Extension For Javascript

Chrome extensions are a useful way to personalize your browser experience and making your own is a great weekend project for beginner and experienced programmers alike.
The Basics
In this tutorial, we’ll walk through a simple extension that will help automate a simple task on Reddit. After selecting any subreddit, our extension will give the option to launch a new tab directly to that subreddit’s Top Posts of All Time.

When a user right-clicks, they will be given this option. Revolutionary? Not really, but this extension demonstrates some fundamental features that can be modified and built on in a lot of different, more powerful, ways.
You can view the GitHub for this entire project here, and feel free to copy and change it however you want.
Let’s get started.
Part One | Adding an Extension to Chrome
First, head over to chrome://extensions, which you can type or paste directly into the Chrome search bar. On the top right, there will be an option to turn on Developer Mode. Go for it.

Some new features will appear, including an option to Load unpacked, which you can use to import a folder containing a new extension. At the end of this tutorial, our project will look like this:

However, you don’t have to wait until you are finished to ‘unpack’ your extension into Chrome. In fact, as soon as you put some files into your project folder you can test things out and see how they are running.
That being said, let’s get started making our extension.
Part Two | Writing the Program
A basic chrome extension has three parts; an icon image, a background.js file, and a manifest.json. Aside from the manifest, which is usually left alone, we can organize the other two into directories like this:

Technically, we don’t need to use directories at all. But, it’s not a bad idea to practice good organization especially if you plan on making your own more complex extension later on.
Now, let’s take a look at the manifest.json.
Adding the Manifest.
The manifest.json file tells Chrome key information about our extension, its different parts, and how to handle each one. Let’s take a look.
“manifest_version”: 2,
“name”: “Top Posts Viewer”,
“version”: “1.0”,
“description”: “Launch a new tab with top posts from any subreddit.”,
Aside from remembering to use “manifest_version”: 2 (the first version is no longer accepted), everything else is fairly self-explanatory. Our extension needs a name, a version(in case we decide to submit and update in the Chrome Web Store), and a brief description about what it does.
After that, we need to tell Chrome about any special information our project needs access to. For this project, there are two things:
“permissions”: [
“contextMenus”,
“tabs”
],
A context menu is the menu that appears when you right-click something in your browser. In order to add an option for the user there, we will need to request permission to modify it. Also, since we want to launch a new tab in the browser, we need permission to access tabs.
From there, we now have to tell Chrome about our project’s scripts. We only have one, located in the js directory, so it looks like this:
“background”: {
“scripts”: [“js/background.js”]
},
Now, all we have to do is explain how to handle our icon image.
“browser_action” : {
“default_icon” : “images/icon.png”
},
“icons”: {
“16”: “images/icon.png”,
“32”: “images/icon.png”,
“48”: “images/icon.png”,
“128”:”images/icon.png”
}
}
The default_icon is what appears in the extensions toolbar, and the other icons appear in different parts of the Chrome Web Store. For a more professional project, you should include different sizes of the icon for better resolution, but for this project, I just used the same one.
That covers the manifest, so let’s go onto the main JavaScript file.
Adding A Background Script
A background script listens for key events or actions in the browser and reacts with specific code. This is where our program will actually run, and there are a few key things we need it to do.
First, we want to add a selectable element in the right-click Context Menu. At the very top of background.js, we can add:
chrome.contextMenus.create ({
“title”: “View Top Posts From This Subreddit”,
“contexts”: [“selection”],
“onclick”: openTab()
});
The title attribute will appear in the menu, along with the icon from our manifest.json file. Next,contexts explains that we are looking to capture selected text (which for us is going to be subreddit name). Finally, onclick tells Chrome what to do when someone selects our context menu element.
In this case, we want to call the functionopenTab(), which we will need to write below. This function will actually open the new tab linking to the selected subreddit’s Top Posts of All Time. It’ll look like this:
function openTab(){
return function(info, tab){
let text = info.selectionText;
let redditLink = “https://www.reddit.com/” + format(text) +
“/top/?t=all”
chrome.tabs.create ({index: tab.index + 1, url: redditLink,
selected: true});
}
};
If you’re wondering why our function immediately calls another function, it’s a neat trick for getting around the limited information usually allowed to background scripts. This way, we don’t need any additional JS files.
With that out of the way, the first thing we want to do is store the selected subreddit name in a variable called text.

Then, we can sandwich the variable into the URL above, which will take us to any subreddit’s Top Posts of All Time. But first, we will quickly pass text through a function we willcall format().
function format(subName){
if (subName[0] === “r” && subName[1] === “/”){
return subName
}
else {
return “r/” + subName
}
};
Sometimes Chrome omits the “r/” when right-clicking, so this function makes sure we are placing a subreddit name with the proper formatting into our URL. If “r/” wasn’t selected properly, it adds it automatically into a new variable called redditLink.
Now that we have the correct link, the final step is to create the new tab. Going back to chrome.contextMenu.create above, we’ll use tab.index + 1 to make a new tab and provide redditLink as the URL it opens to. Finally, with selected: true Chrome will bring the user right to that subreddit’s Top Posts of All Time and they can browse away.
Part Three | Next Steps
Now that we have a fully functional, albeit relatively simple, Chrome Extension, we can finally submit to the Chrome Web Store.
But before then, there are a ton of ways to play around with this extension and use it as a building block for making your own. More complex extensions can even use HTML or CSS for things like popups, animations, etc. There’s really a lot you can do.

what is the best extension for chrome

Google’s Chrome browser is one of the most popular web browsers around. Millions of users across the globe use this browser daily. This browser’s functionality can be enhanced by installing Chrome extensions.

There are hundreds of thousands of Chrome extensions available in the present day, so choosing the right ones for your browser can be tricky.

We have reviewed the multiple Chrome extensions to help you find the best ones for different uses.

What You Will Learn: [hide]

Most Popular Chrome Extensions Review
Frequently Asked Questions
List Of The Best Chrome Extensions
Comparison Of Top Essential Chrome Extensions

1) Google Calendar

2) Grammarly

3) Loom

4) Hubspot Sales

5) LastPass

6) Everhour

7) Awesome Screenshot

8) Checker Plus for Gmail

9) StayFocusd

10) RescueTime

11) Buffer

12) Oberlo AliExpress Product Importer

Conclusion
Recommended Reading
Most Popular Chrome Extensions Review
Chrome Extensions

Fact Check: The vast majority of Google Chrome Extensions are Productivity, Fun, and Photos apps. Developer tools, Social & Communication, and Accessibility apps make up a smaller proportion of Chrome extensions, but they still number in the thousands.
Chrome Extensions by Category

Pro-Tip: The Chrome browser informs users when an extension is not trustworthy by displaying a “proceed with caution” pop-up. This can help users differentiate between extensions that trusted developers have created and those that have been created by unfamiliar ones.
Frequently Asked Questions
Q #1) Can I trust Chrome extensions?

Answer: Chrome extensions come from a wide variety of developers. Google considers most extensions to be safe use. However, users should proceed with caution before installing extensions that have few downloads or reviews.

Q #2) Are Chrome Extensions bad?

Answer: They offer added functionality for the Chrome browser. Some of these extensions may use a high amount of system resources and collect your data.

Q #3) Are Chrome Extensions free?

Answer: There are many great free Chrome extensions available. However, many extensions also include paid versions with added features and functionality.

Q #4) What is the purpose of Chrome extensions?

Answer: They offer added capabilities to the Google Chrome browser.

Q #5) Can Chrome extensions steal your information?

Answer: Many extensions can view the different activities you do online. Some of these extensions may retain browsing activity information and potentially capture your passwords. Users should stick with trusted extensions from major developers to avoid such problems.

=>> Contact us to suggest a listing here.
List Of The Best Chrome Extensions
Here are some popular and must-have Chrome extensions:

Google Calendar
Grammarly
Loom
HubSpot Sales
LastPass
Everhour
Awesome Screenshot
Checker Plus for Gmail
StayFocused
RescueTime
Buffer
Oberlo AliExpress Product Importer
Comparison Of Top Essential Chrome Extensions
Tool Name Best For Price Ratings

Google Calendar Individuals and businesses that wish to stay more organized Free Star_rating_5_of_5
Grammarly Writers who require efficient spell checking and plagiarism checking. Basic: Free
Premium: $12/month
Business: $12.50/month Star_rating_4_of_5
Loom Screen and audio capture and file sharing Starter: Free
Business: $8/month
Enterprise: Contact sales for details Star_rating_4_of_5
Hubspot Sales Businesses that want to manage customer relations more effectively Free: $0
Starter: $45/month
Professional: $450/month
Enterprise: $1200/month Star_rating_4_of_5
LastPass Individuals and businesses that require a robust password manager Free: $0
Premium: $3/month
Families: $4/month
Teams: $4/month
Business: $6/month Star_rating_3_of_5
Detailed Review:

1) Google Calendar

Best for anyone that wants to be more organized.

Google Calendar

Google Calendar remains one of the best calendar tools out there. Users can easily keep track of events, schedule new ones, and share them with co-workers, friends, or family. You can also set up reminders, maintain track of RSVPs, and send invitations.

Features:

Schedule view.
Year view.
Schedule upcoming meeting rooms.
Add appointments.
World clock.
Verdict: Google Calendar remains one of the best online calendar tools. It is easy to use, yet packs a range of features that just about anyone can use.

Price: Free

Website: Google Calendar

Chrome Extension: Google Calendar Extension

2) Grammarly

Best for writers that need to optimize their content and check for plagiarism quickly.

Grammarly

Grammarly is one of the most popular Chrome extensions around. It is a spelling and grammar checker with a clean and simple interface. Users can customize their spell-checking settings easily, and check for plagiarism with just one click.

Its premium version offers features for tone adjustment, word choice, and formality levels. Grammarly is the perfect fit for any writer that wants to clean up and optimize their written content.

Features:

Spelling
Grammar
Punctuation
Fluency check
Plagiarism detection
Verdict: Grammarly’s clean and simple interface makes it both easy and enjoyable to use. Writers of all backgrounds can benefit from using this app for their written content.

Price:

Basic: Free
Premium: $12/month
Business: $12.50/month
Grammarly pricing

Website: Grammarly

Chrome Extension: Grammarly Extension

3) Loom

Best for small to medium-sized businesses that require easy video communication between staff.

Loom

Loom is one of the most essential Chrome extensions. It is a video messaging tool created for the workplace. Users can record their screen, face, or voice and create videos in just a few clicks. This helps save time, as users can get straight to the point by creating and sharing their content.

Features:

Video capture
Screen capture
Image editor
Scrolling capture
File sharing
Platform search
Verdict: Loom is a useful tool for any business owner or employee that needs to communicate information via video or audio quickly.

Trial: Yes | 14-days for Loom Business

Pricing

Starter: Free
Business: $8/month
Enterprise: Contact sales for details
Loom pricing

Website: Loom

Chrome Extension: Loom Extension

4) Hubspot Sales

Best for large businesses that need an efficient way to manage customer relations.

Hubspot Sales

HubSpot Sales Hub offers a powerful Customer Relationship Management (CRM) system for large businesses that wish to store and manage customer information. It includes sales engagement and analytics tools to take your business to the next level.

The platform offers businesses better insight into their customers and provides tools to improve customer management efficiency.

Features:

Automated sales force tools.
Marketing automation tools.
Customer support tools.
Mobile user support.
Social collaboration features.
Verdict: HubSpot Sales offer a wide range of tools for customer relationship and sales management. This is one of the best extensions for Chrome if you run a growing business that needs to stay on top of operations.

Trial: Yes | 14-day

Price:

Free: $0
Starter: $45/month
Professional: $450/month
Enterprise: $1200/month
Hubspot Sales pricing

Website: Hubspot Sales

Chrome Extension: HubSpot Sales Extension

5) LastPass

Best for anyone that needs a versatile and reliable password manager.

LastPass

LastPass is a feature-packed password manager with all the tools needed to keep your passwords safe. Users can securely share their passwords with others, keep themselves safe using the handy dark web monitoring tools.

Features:

Two-factor authentication.
Automatic form-filler.
Fingerprint login.
Password generator.
Mobile app unlock pin.
Verdict: LastPass is a great password manager that can compete with other top-end password managers on the market. Its wide array of features will satisfy even the most cautious users.

Trial:

Free: 30-day access to Premium
Premium: 30-day
Families: 30-day
Teams: 14-day
Business: 14-day
Price:

Free: $0
Premium: $3/month
Families: $4/month
Teams: $4/month
Business: $6/month
LastPass price

Website: LastPass

Chrome Extension: LastPass Extension

6) Everhour

Best for small business teams and freelancers that wish to keep track of time spent on projects.

Everhour

Everhour is an online time-tracking extension that is suitable for small business teams and freelancers who wish to track the time spent on different projects and create billable invoices based on them. The extension features a clean and simple interface but also packs a wide range of useful features.

Features:

Project management tools.
Resource planning tools.
Reports and dashboards.
Expense tracking.
Sending invoices.
Verdict: Everhour is a splendid choice for any small business team or freelancer that wants to keep track of their activities and convert their efforts to billable hours. This is one of the best Google Chrome extensions because of its simple interface that is easy for new users to pick up. Creating billable invoices is a breeze with Everhour.

Price:

Premium: $8.50/month for each user.
Trial: Yes | 14-days
Website: Everhour

Chrome Extension: Everhour Extension

7) Awesome Screenshot

Best for users that require a high-quality screenshot and screen capture tool.

Awesome Screenshot

Awesome Screenshot is a Chrome extension designed for designers and casual users needing high-quality screen recording and screenshot capabilities. Users can add annotations and text to their screenshots to provide quick and easy feedback.

The extension allows you to upload captured images in many different ways. This includes uploading via the extension itself, choosing the image from your computer, dragging and dropping the image, and pasting your image via the clipboard.

Features:

Screen capture.
Video capture.
Image editing.
Scrolling capture.
Screen recording.
File sharing.
Verdict: Awesome Screenshot offers a great solution for designers and casual users seeking a quick and easy way to capture their screen. The annotations and text tool make providing feedback incredibly simple. This tool is a must-have for any designer.

Price: Free
Basic: $4/month for each user
Professional: $5/month for each user
Team: $25/month for five users
Awesome Screenshot pricing

Website: Awesome Screenshot

Chrome Extension: Awesome Screenshot Extension

8) Checker Plus for Gmail

Best for small to medium-sized businesses and entrepreneurs that need to stay up to date with email contacts.

Checker Plus for Gmail

Checker Plus for Gmail offers a quick and easy solution for businesses and users that need to monitor their emails without opening their Gmail app.

Users can view how many emails they have received by glancing at the extension’s button on their Chrome toolbar. You can also customize how you receive notifications. Users can choose to receive pop-ups, chime alerts, and even get part of their email read aloud.

Features:

Monitoring Gmail.
Customized notifications.
Push notification support.
Offline view.
Verdict: Checker Plus for Gmail is a great add-on for anyone that needs to keep track of a high volume of emails throughout the day. Its customizable notification feature makes it easy for users to choose an option that suits them.

Price: Free

Website: Checker Plus for Gmail

Chrome Extension: Checker Plus for Gmail Extension

9) StayFocusd

Best for any user that requires a website blocking tool with custom features.

StayFocusd

StayFocusd is a simple but useful website blocking tool. It offers a wide range of features, such as the ability to block websites for a specified amount of time. Users can also selectively block in-page content, such as images and videos, to help them stay focused on other tasks.

Features:

Blocking websites for specified time intervals.
Tracking time spent on a website.
Simple pause and play feature.
Block notifications.
Viewing app usage and history.
Verdict: StayFocusd is a website blocker that gets the job done. It is useful for increasing productivity while web browsing and the app tracking feature helps users understand where exactly they are spending their time.

Price: Free

Website: StayFocusd

Chrome Extension: StayFocusd Extension

10) RescueTime

Best for individuals that need to keep track of time spent on different online activities.

RescueTime

RescueTime is a great productivity app that offers insight into your activity. It is compatible with both desktop and mobile devices, so you can understand how your time is spent both at home and on the go. This app is best for personal use and isn’t touted as a time-tracking solution for businesses.

Features:

Computer activity recording.
Monitoring time spent on meetings and phone calls.
Weekly email summary of activity.
Product vs unproductive days comparison tool.
Website blocking.
Verdict: RescueTime is one of the must-have Chrome extensions because it runs on both desktop and mobile devices. It will help any user manage their time more effectively.

Trial: Yes | 14-day

Price:

RescueTime Lite: Free
RescueTime Premium: $9/month
Website: RescueTime

Chrome Extension: RescueTime Extension

11) Buffer

Best for small businesses that require a versatile social media management tool.

Buffer

Buffer is a versatile social media management platform that aims to drive customer engagement and offer great results. It includes tools for publishing, enhancing engagement, and analyzing social media performance.

These tools are essential for social media marketers that wish to stay on top of their business accounts and collaborate with others for an optimized social media presence.

Features:

Publishing
Analyzing
Social Engagement
Analytics
Content calendar
Verdict: Buffer makes social media management a breeze. Users can plan ahead thanks to its handy post-scheduling feature. Its collaborative tools also help divide tasks for easier social media management.

Price:

Basic: Free
Essentials: $5/month
Buffer pricing

Website: Buffer

Chrome Extension: Buffer Extension

12) Oberlo AliExpress Product Importer

Best for E-commerce business owners that wish to purchase products from the AliExpress marketplace.

Oberlo

Oberlo AliExpress Product Importer offers e-commerce store owners a great interface for browsing products on AliExpress marketplace. They can purchase items directly through the app and run a dropshipping business from just about anywhere in the world.

Features:

Quick product importing from AliExpress marketplace.
Syncing imports between AliExpress and Shopify.
Easy sample ordering.
Verdict: Oberlo AliExpress Product Importer is a brilliant choice for any e-commerce business owner that wants to make managing AliExpress imports easier.

Price:

Explorer: Free
Boss: $29.90/month
Oberlo pricing

Website: Oberlo

Chrome Extension: Oberlo Extension

Conclusion
As you can see, there are plenty of great Chrome extensions out there. Many of the extensions and apps discussed above are related to productivity, both on a personal and business level.

RescueTime is a smart choice for users that want to manage their time effectively. Loom is great for anyone that wants powerful screen and audio capturing capabilities.

Google Calendar stands out for its simple but effective interface that helps keep things organized. Consider reviewing the above list the next time you want to enhance your Chrome browser capabilities.

Conclusion

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