Open Source JavaScript Browser Extensions and Plugins - Page 4

JavaScript Browser Extensions and Plugins

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Browse free open source JavaScript Browser Extensions and Plugins and projects below. Use the toggles on the left to filter open source JavaScript Browser Extensions and Plugins by OS, license, language, programming language, and project status.

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  • 1
    FastClick

    FastClick

    Easy-to-use library to remove click delays on browsers with touch UIs

    FastClick is a simple, easy-to-use library for eliminating the 300ms delay between a physical tap and the firing of a click event on mobile browsers. The aim is to make your application feel less laggy and more responsive while avoiding any interference with your current logic. FastClick is developed by FT Labs, part of the Financial Times. Note: As of late 2015 most mobile browsers - notably Chrome and Safari - no longer have a 300ms touch delay, so fastclick offers no benefit on newer browsers, and risks introducing bugs into your application. Consider carefully whether you really need to use it. The library has been deployed as part of the FT Web App. FastClick doesn't attach any listeners on desktop browsers.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 2
    Featherlight

    Featherlight

    Lightweight jQuery lightbox plugin

    Featherlight is a very lightweight jQuery lightbox plugin. It's simple yet flexible and easy to use. Featherlight has minimal css and uses no inline styles, everything is name-spaced, it's completely customizable via config object and offers image, ajax and iframe support out of the box. Featherlight's small footprint weights about 4kB. Featherlight is very, very lightweight. 400 lines of JavaScript, 100 of CSS, less than 6kB combined. Many lightbox plugins try to handle everything for you. Even the ones called «simple» or «lightweight». Featherlight is different. It's for the pro who knows what he’s doing and just needs a barebones plugin. Don't be fooled by Featherlight's small footprint! It's smart, responsive, supports images, ajax and iframes out of the box and you can adapt it to your needs. To get started, simply add the "data-featherlight" with a selector, an image or an ajax-url. It's that simple.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 3
    FlexSlider

    FlexSlider

    An awesome, fully responsive jQuery slider plugin

    Simple, semantic markup. Supported in all major browsers, horizontal/vertical slide and fade animations. Multiple slider support, Callback API, and more. Hardware accelerated touch swipe support. Custom navigation options, compatible with the latest version of jQuery. Display your products in a neatly designed, responsive slideshow within WooCommerce. FlexSlider was built to serve up the best responsive jQuery slider around. I had built a few implementations of responsive sliders on different client projects and noticed that there was a glaring hole for plugin support with the concept. I wanted to build a plugin that would serve the newest of beginners, while providing seasoned developers a tool they could use with confidence. What has come forth is this, FlexSlider. I plan to maintain this plugin and provide support to users implementing FlexSlider into their sites. Responsive web design can be tricky, but I hope that FlexSlider serves to uncomplicate the process, just a little bit.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 4
    Google Unlocked

    Google Unlocked

    Google Unlocked browser extension uncensor google search results

    Google Unlocked is an open-source browser extension, which unlocks hidden google search results. The extension scans hidden links that were censored on Google search results due to complaints. The tool scans those complaints and extracts the links from them, puts the links back into Google results, all in a matter of seconds. The extension was taken down by Google from the Chrome store. Please use manual install. Download the latest zip release from Google Unlocked repository releases. Extract the zip file to a permanent path (Chrome will need to load it every time it restarts). Open Chrome and go to chrome://extensions/ and check the box for Developer mode in the top right. Click the Load unpacked extension button and select the unzipped folder for your extension to install it. After installing the extension, every time you Google a keyword, it will transparently scan the hidden URLs and injects them at the bottom of the page.
    Downloads: 1 This Week
    Last Update:
    See Project
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  • 5
    Klipse

    Klipse

    Klipse is a JavaScript plugin for embedding interactive code snippets

    Klipse is a JavaScript plugin for embedding interactive code snippets in tech blogs. Technically, Klipse is a small piece of JavaScript code that evaluates code snippets in the browser and it is pluggable on any web page. The klipse plugin is a JavaScript tag that transforms static code snippets of an HTML page into live and interactive snippets. If you want to integrate Klipse inside a Clojurescript project, it is recommended to consume Klipse as a Clojurescript library like any other Clojurescript lib. The Klipse plugin can be easily styled with CSS, which can be applied both to the Klipse plugin's own elements, and to the CodeMirror editor's elements. Much of the styling you'll apply will be to CodeMirror, as it contains all the CSS classes to style the code itself. Surrounding CodeMirror is the Klipse plugin, the styles of which control the plugin's borders, and the executed code's output.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 6
    LinkifyJS

    LinkifyJS

    JavaScript plugin for finding links in plain-text

    A JavaScript library for detecting and converting URLs, email addresses, and hashtags into clickable links in text content.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    No Coin

    No Coin

    No Coin is a tiny browser extension aiming to block coin miners

    No coin is a tiny browser extension aiming to block coin miners such as Coinhive. Even though I think using coin mining in browser to monetize content is a great idea, abusing it is not. Some websites are running it during the entire browsing session which results in high consumption of your computer's resources. I do believe that using it occasionally such as for the proof of work of a captcha is OK. But for an entire browsing session, the user should have the choice to opt-in which is the aim of this extension. The idea was to keep it separate from adblocking. Coin mining in the browser is a different issue. Where ads are tracking you and visually interfering with your browsing experience, coin mining, if abused, is eating your computer resources resulting in slow downs (from high CPU usage) and excessive power consumption. You might be OK with that and not with ads, or vice versa. Or you might just want to keep ads blocked entirely and just enable the coin mining script.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    SimpRead

    SimpRead

    An extension that allows you to instantly enter immersive reading

    Unique function, by extracting titles, descriptions, text, media pictures/videos and other resources to generate pages that conform to Chinese reading habits, with zero-interference and immersive features, suitable for in-depth reading. Do not change the structure of the current page, just highlight the part that needs to be read, suitable for temporary reading or websites that are not adapted to the reading mode. Have pictures you don’t want to show? no problem! Any element on the page can be re-edited. The brand-new lexical analysis engine can not only recognize Wordpress, Hexo, Ghost, and Discuz, as long as it is a well-structured page, it can automatically generate a reading mode. Not only that, but also has a variety of recognition modes.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    Toggl Track

    Toggl Track

    Toggl Track browser extension for Chrome and Firefox

    Track time in Toggl Track without leaving your browser and the online apps you usually spend time on. Available for Chrome and Firefox. Our browser extension (previously called Toggl Button) for Chrome and Firefox lets you track time in your favorite web tools and wherever you are on the web. The Toggl Track browser extension integrates with 100+ popular tools. Toggl Track browser extension was previously called Toggl Button. Beyond the name and colors, no other changes have been made. Microsoft Edge has support for Chromium extensions, so you can use the Toggl Track browser extension on Microsoft Edge by downloading it from the Chrome Store. Once you install the add-on, a Toggl Track icon will be added to the right of the address bar. Click on the Toggl Track browser extension to reveal the timer’s dropdown. Here you can check your current time entry, change settings, sync, log out or stop your timer.
    Downloads: 1 This Week
    Last Update:
    See Project
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  • 10
    TopoJSON

    TopoJSON

    An extension of GeoJSON that encodes topology

    TopoJSON eliminates redundancy, allowing related geometries to be stored efficiently in the same file. For example, the shared boundary between California and Nevada is represented only once, rather than being duplicated for both states. A single TopoJSON file can contain multiple feature collections without duplication, such as states and counties. Or, a TopoJSON file can efficiently represent both polygons (for fill) and boundaries (for stroke) as two feature collections that share the same arc mesh. See How To Infer Topology for a visual explanation of how TopoJSON works. See Command-Line Cartography for an introduction to TopoJSON and related tools. See TopoJSON Format Specification for the format specification. To further reduce file size, TopoJSON can use quantized delta-encoding for integer coordinates. This is similar to rounding coordinate values (e.g., LilJSON), but with greater efficiency and control over loss of information.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 11
    browserify

    browserify

    browser-side require() the node.js way

    Browserify lets you require('modules') in the browser by bundling up all of your dependencies. Browsers don't have the require method defined, but Node.js does. With Browserify you can write code that uses require in the same way that you would use it in Node. Install the uniq module with npm. Now recursively bundle up all the required modules starting at main.js into a single file called bundle.js with the browserify command. Browserify parses the AST for require() calls to traverse the entire dependency graph of your project. Drop a single <script> tag into your html and you're done! browserify is a tool for compiling node-flavored commonjs modules for the browser. You can use browserify to organize your code and use third-party libraries even if you don't use node itself in any other capacity except for bundling and installing packages with npm.
    Downloads: 1 This Week
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    See Project
  • 12
    web-extension-starter

    web-extension-starter

    Web Extension starter to build "Write Once Run on Any Browser"

    Web Extension starter to build "Write Once Run on Any Browser" extension. Cross Browser Support (Web-Extensions API). Browser Tailored Manifest generation. Automatic build on code changes. Auto packs browser-specific build files. SASS styling. TypeScript by default. ES6 modules support. React UI Library by default. Smart reload. Used by extensions in production that has over 100,000+ users.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    Mozilla GPO plugin/module

    Mozilla GPO plugin/module

    Firefox and Thunderbird addon to manage settings using AD Group Policy

    Firefox, Thunderbird and Pale Moon autoconfig module for manage user preferences and user profile CA certificates from Active Directory Group Policy. I highly recommend using the Group Policy addon with Firefox ESR releases. Regular releases may contain changes to which the addon is not adapted. Since 53 Firefox support only WebExtensions. WebExtensions can't access to registry and can't do anything with application preferences. Therefore the **last version** of Firefox in which this **add-on** works - 52 ESR, because of this since 1.0 version its **autoconfig module**.
    Downloads: 6 This Week
    Last Update:
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  • 14
    CherryPad - Browser Notepad

    CherryPad - Browser Notepad

    Your Sleek, Distraction-Free Notepad for Endless Productivity

    CherryPad: Your Sleek, Distraction-Free Notepad for Endless Productivity Welcome to CherryPad 🍒, the notepad extension for your browser! CherryPad is designed to make your note-taking experience quick, convenient, and visually pleasing. With features like AutoSave, a built-in emoji panel, and hidden Easter Eggs, CherryPad offers a fun yet practical workspace.
    Downloads: 16 This Week
    Last Update:
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  • 15

    seaart-save-metadata

    Chrome extention to save metadata of works on seart.ai in XMP in files

    (modified 2025-12-20) v1.1.0 Now it also works on `postDetail` pages. Chrome extention to save metadata of works on seart.ai in XMP and embed them into files. Works on /explore/detail pages and /postDetail/ pages. Does NOT work to videos. Filenames are automatically sanitized. It saves: prompt, model, checkpoint, lora, creator, source, etc. of each work. Press a button to start fetching metadata and download a work on a target page. # Installation Unpack the release and directly load it into Chrome with "Load unpacked".
    Downloads: 4 This Week
    Last Update:
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  • 16
    MBR Cookie Consent

    MBR Cookie Consent

    Enterprise-grade GDPR/CCPA compliant cookie consent with IAB TCF v2.3

    MBR Cookie Consent is the most comprehensive, enterprise-grade cookie consent management plugin for WordPress - completely free. Built for publishers, e-commerce sites, and businesses that take privacy seriously. **100% Free. Forever.** All premium features included at no cost - no upsells, no restrictions, no hidden fees. **Enterprise-Grade.** Used by professional publishers, advertisers, and agencies worldwide. **Easy Setup.** Configure in 5 minutes with intelligent defaults and one-click policy generation.
    Downloads: 7 This Week
    Last Update:
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  • 17
    Text to Voice
    'Text to Voice' or 'Text to Speech' is 1 of the coolest Firefox add-ons. It gives ur brwsr the pwr of speech. Select txt, clck the bttn on the bttm rite & this add-on spks the selectd txt 4 u. Isn't it brllant? Moreovr odio file cn b dnloaded as
    Downloads: 7 This Week
    Last Update:
    See Project
  • 18
    Another YouTube Downloader
    Cross browser userscript to download videos from YouTube in various formats and sizes available. Find size of videos before downloading (http://pradip.x10.mx/index.php/download-details/36/Helper) Check Readme.txt in Files section for installation instructions.
    Downloads: 3 This Week
    Last Update:
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  • 19
    See Passwords

    See Passwords

    An add-on for Firefox to show passwords in web pages

    Displays all passwords of web pages with just one click with this handy extension dedicated to the Firefox browser Firefox add-on: http://mzl.la/1LuZIMd Opera extension: http://bit.ly/1VDjrZn
    Downloads: 4 This Week
    Last Update:
    See Project
  • 20
    custombuttons
    Custom Buttons is a Mozilla Firefox extension, that allows you to add custom toolbar buttons.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 21
    JavaScript QR Code

    JavaScript QR Code

    Make QR Codes in JavaScript

    A mini javascript library to get the famous QR code. You can set the size, content to be encoded and get the html code to include the image in your web pages. You can also share the image via email with a simple interface included in the mini library Now is available Desktop app, QR Code Generator, where Window 7 and later are supported. Both x86 and amd64 (x64) binaries are provided for Windows. Please note, the ARM version of Windows is not supported for now. Get Android app: https://play.google.com/store/apps/details?id=com.ulm.chartgeneratordroid Get Firefox add-on: http://mzl.la/1Jp8A57 Get Opera extension: http://bit.ly/1jzYiU5
    Downloads: 3 This Week
    Last Update:
    See Project
  • 22
    MM3-ProxySwitch - Firefox WebExtension

    MM3-ProxySwitch - Firefox WebExtension

    MM3-ProxySwitch - Firefox & Chrome - Extension (Add-ons)

    In Browser Chrome by Google or Firefox and Thunderbird by Mozilla you can per default configure only the setting for one internet connection. With the MM3- Proxy Switch you can manage different configurations and simply switch over between these.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 23
    Password Extractor

    Password Extractor

    Transfer passwords to and from K-Meleon

    Transfer passwords between browsers. This extension for K-Meleon can also be installed on other browsers that use XUL including SeaMonkey, Pale Moon, Mypal, Roytam's New Moon, and Waterfox Classic. The Password Extractor XML export/import format is also used by Password Exporter (for Firefox and SeaMonkey) and Password Backup Tool (for Pale Moon and Basilisk). The CSV export format is compatible with popular browsers and password managers including Mozilla Firefox, Google Chrome, Microsoft Edge, Opera, Brave, Vivaldi, KeePass, and KeePassXC. To import passwords from another browser's CSV password export use the Password Extractor conversion tool for your browser.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 24
    Web Security Audit

    Web Security Audit

    Passively audits the security posture on current page for your browser

    The goal of this project is to build an add-on for browser that passively audits the security posture of the websites that the user is visiting. Assume that the tool is to be used on non-malicious websites, currently not under attack or compromised. Add-on wants to report security misconfigurations, or failure to use best security practices. - Add-on tries to analysis the commonly vulnerable setting of servers: lack of use of security-relevant headers, including: - strict-transport-security - x-xss-protection - content-security-policy - x-frame-options - x-content-type-options It is available for Opera Beta and Developer browser - https://bit.ly/2TvvFw4
    Downloads: 2 This Week
    Last Update:
    See Project
  • 25

    foxfm

    extensions of the OFM views and supporting functions for the manager

    Download for Firefox 48 and later here: https://addons.mozilla.org/de/firefox/addon/foxfm2/ Follow version of foxfm is foxfm2 and maintained here: https://github.com/kabeleced77/foxfm2 The main target of the Firefox addon foxfm is to support the player of OFM with additional and usefull information. A second aim of foxfm is to reduce the number of clicks required for certain actions like buying or selling players. The prices of all stadium blocks can be changed by one click. foxfm provides a wide variety of configuration items to adjust it to the individual needs.
    Downloads: 2 This Week
    Last Update:
    See Project
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