JavaScript Addon

Open-source JavaScript projects categorized as Addon

Top 23 JavaScript Addon Projects

  • ClearURLs-Addon

    ClearURLs is an add-on based on the new WebExtensions technology and will automatically remove tracking elements from URLs to help protect your privacy.

    Project mention: China accused of illegal police stations in Netherlands | | 2022-10-26

    You can use the ClearURLs addon. I've been using it for years. It's not perfect, but it automatically removes a lot of tracking stuff. Everyone should be using it actually.

  • treestyletab

    Tree Style Tab, Show tabs like a tree.

    Project mention: Tree Style Tab, Show tabs like a tree | | 2022-11-23
  • Zigi

    The context switching struggle is real. Zigi makes context switching a thing of the past. It monitors Jira and GitHub updates, pings you when PRs need approval and lets you take fast actions - all directly from Slack!

  • FastForward

    Don't waste your time with compliance. FastForward automatically skips annoying link shorteners.

    Project mention: Bypass needed for Comet, or literally any executor. | | 2022-11-30 Works for EVERY executor

  • Librefox

    Librefox: Firefox with privacy enhancements

    Project mention: Each Firefox download has a unique identifier | | 2022-03-17
  • nightTab

    A neutral new tab page accented with a chosen colour. Customise the layout, style, background and bookmarks with nightTab.

    Project mention: Is NightTab safe? | | 2022-08-23

    It is open source and anyone can see the source code

  • yomichan

    Japanese pop-up dictionary extension for Chrome and Firefox.

    Project mention: Best Japanese school for intermediate with gaps | | 2022-11-28
  • maxurl

    Finds larger/original versions of images and videos

    Project mention: This is a fucking joke. What a world. | | 2022-11-12

    There's also maximageurl that can sometimes help too

  • Scout APM

    Truly a developer’s best friend. Scout APM is great for developers who want to find and fix performance issues in their applications. With Scout, we'll take care of the bugs so you can focus on building great things 🚀.

  • sieve

    Sieve Script Editor (by thsmi)

    Project mention: Maybe moving to self hosted email | | 2022-05-08

    use mailsieve scripts, they are amazing. Checkout sieve originally just a thunderbird addon but you can install it as a desktop app, hosted web application or build your own docker container.

  • lovely-forks

    💚 🍴 Show notable forks of GitHub repositories under their names.

    Project mention: The Community Corrosive Effects of CLAs | | 2022-11-14

    >One problem is discoverability. GitHub lists forks in an un-sort-able manner.

    This obviously doesn't solve the problem generally, but I recently found an extension called lovely-forks[1], that automatically shows the most starred fork for every github repository.


  • CookieMonster

    Addon for Cookie Clicker that offers a wide range of tools and statistics to enhance the game

    Project mention: Is There Any Mod that shows which is the best build purchase for that moment? | | 2022-11-07 might be what you want

  • zotero-tag

    One add-on to rule Tags all. Manage all your Tags in one Zotero add-on.

    Project mention: Make an annotated bibliography. | | 2022-09-02

    So many cool little Zotero tweaks. I use an auto-tagger so when an item is added to Zotero it is automatically tagged with "to read" and once it's opened that is changed to "have read" so I can easily find something I still need to read, and the 'to read' tag is color-marked red so there's a little red dot next to everything in my library that I haven't opened yet.

  • addon-node-red

    Node-RED - Home Assistant Community Add-ons

    Project mention: Opening a custom port for home assistant | | 2022-10-31

    Awesome. Have a look at Visual Studio Code Add-On, Node-Red, and Ad-Guard , you can do some really powerful stuff with these.

  • RESTer

    A REST client for almost any web service (Firefox and Chrome Extension)

    Project mention: Hoppscotch: Open-Source Alternative to Postman | | 2022-02-28

    Nowadays I am quite satisfied with the RESTer firefox addon: This does look neat but there is no explanation on how to install it locally, and telemetry is enabled by default.

  • msw-storybook-addon

    Mock API requests in Storybook with Mock Service Worker.

    Project mention: Storybook - mocking API calls | | 2022-11-25

    As mentioned, we'll be using the MSW addon, which stands for: "Mock Service Worker", it adds a service worker that will intercept and mock our requests.

  • livemarks

    Extension that restores RSS Feed Livemarks in Firefox.

    Project mention: RSS reader that will sync across devices? | | 2022-08-15

    Livemarks should support syncing.

  • XKit-Rewritten

    🧰 The enhancement suite for Tumblr's new web interface

    Project mention: a common thread | | 2022-08-03

    a more serious answer is xkit has a bunch of fancy options, one of which is exact dates on posts

  • fireftp

    free, secure, cross-platform FTP/SFTP client for Firefox

  • CookieBlock

    Repository for the CookieBlock browser extension, which automatically enforces user privacy policy on browser cookies.

    Project mention: Nearly all websites may breach GDPR | | 2022-03-21

    It's pretty well known that cookie-walls are rife with anti-consumer patterns. Going to something like requires me to make more than 100 clicks to object to the 'legitimate interests' of as many companies. Which is a pretty terrible anti-pattern when I don't want to be tracked at all...

    After reading the abstract, it seems the authors try to classify cookies using a special browser extension called "CookieBlock" [1]. I hope they are successful, because I hate being tracked on the internet.


  • emoji

    "Emoji" is a Firefox add-on where you can find emojis and copy them with a single click. (by Sav22999)

  • add-url-to-window-title

    A Firefox addon which will put the web page address (URL) into the window's title. Useful for customizing KeePass's auto-type

    Project mention: My essential Firefox fixes in 2022 | | 2022-03-13

    ive mainly been using keepassxc for a few years which is not too ugly i don't think, but have been trying out keeweb recently which is a lot more minimal.

    a neat feature with keepass is autotype. i have mine set to alt+x so its easy to activate and using the "add url to window title" extension means there's no connection between your vault and the browser.

    another idea i had recently was to create a second vault for passwords that aren't that important. so now they majority of my passwords are in that and the vault master password is shorter so its quicker to type, while anything important goes in my main vault which has a stronger password. its great not having to type a really long password just to unlock my vault so i can log into some random forum! and it also means im less paranoid about leaving the vault unlocked.

  • privatkopiera

    :vhs: Tillägg till Chrome och Firefox för att privatkopiera enklare från nätet.

    Project mention: Hård rock på export finns nu på svtplay | | 2022-07-31
  • Sonar

    Write Clean JavaScript Code. Always.. Sonar helps you commit clean code every time. With over 300 unique rules to find JavaScript bugs, code smells & vulnerabilities, Sonar finds the issues while you focus on the work.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2022-11-30.

JavaScript Addon related posts


What are some of the best open-source Addon projects in JavaScript? This list will help you:

Project Stars
1 ClearURLs-Addon 3,330
2 treestyletab 2,817
3 FastForward 1,901
4 Librefox 1,639
5 nightTab 1,268
6 yomichan 771
7 maxurl 680
8 sieve 603
9 lovely-forks 476
10 CookieMonster 431
11 zotero-tag 413
12 addon-node-red 357
13 RESTer 285
14 msw-storybook-addon 273
15 cookie-quick-manager 189
16 livemarks 184
17 swift-selection-search 169
18 XKit-Rewritten 152
19 fireftp 136
20 CookieBlock 131
21 emoji 115
22 add-url-to-window-title 64
23 privatkopiera 60
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