addons.mozilla.org
Browser extension for Firefox Addons, adding useful tools or workflow improvements inside the browser.
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addons.mozilla.org
Firefox Multi-Account Containers is a Firefox extension that separates users' online activities into color-coded tabs. Cookies are isolated by container, allowing use of multiple accounts on the web, and it can integrate with Mozilla VPN for an extra layer of privacy.
github.com
Firefox Scripts is a GitHub repository holding userChromeJS scripts, autoconfig.js and extensions for Firefox. The instructions say the zip content goes into the Firefox installation folder and scripts are saved into a chrome folder in the profile. The page states the scripts were tested on Firefox Developer Edition 131.0b4.
addons.mozilla.org
FireMonkey is a Firefox browser extension that functions as a lightweight combined user script and user style manager. It provides similar functionality to user script managers such as GreaseMonkey, Tampermonkey and Violentmonkey, and user CSS managers such as Stylish, Stylus and xStyle. It supports GM3 and GM4 script functions, allows users to toggle scripts and CSS on or off via a toolbar button, contains no tracking or advertising, and is released under the Mozilla Open Source licence. It has experimental support for Firefox for Android.
addons.mozilla.org
Browser extension for FireShot, adding useful tools or workflow improvements inside the browser.
fonts.ninja
Fonts Ninja offers a browser extension that identifies fonts on websites by hovering over text. It reports details such as font size, line height and colors, and provides typeface information including designer, pricing, additional styles and supported languages. The extension is available for free on Chrome, Safari, Firefox and Microsoft Edge.
hensm.github.io
fx_cast is a Firefox extension that enables Chromecast support for casting web apps and HTML5 media. It requires a companion bridge application to connect with receiver devices and is currently supported on Windows, macOS and Linux. The v0.x.x releases are described as incomplete and possibly unstable.
gofullpage.com
GoFullPage is a Chrome extension for full page screen capture. It lets users take a screenshot of an entire webpage in one click, with options to crop, edit and annotate the result. Captured screenshots can be exported as an image, PDF or copied to the clipboard.
github.com
GPThemes is a Chrome and Firefox extension that modifies the ChatGPT web interface. It offers custom accent colors, adjustable chat and chatbox widths, typography controls for font family, size, line height and letter spacing, toggleable message bubbles, and light, dark and AMOLED themes. It also provides a distraction-free view that hides elements such as the header, footer and upgrade chip, an expandable prompt box, and a floating theme switcher. The extension is available for Firefox for Android and Cromite.
addons.mozilla.org
Infy Scroll is a Firefox extension, also available for Firefox for Android, that adds customized infinite scrolling to websites and automatically loads the next page. It supports the AutoPagerize and InfyScroll Databases.
chromewebstore.google.com
Browser extension for Instant Data Scraper, adding useful tools or workflow improvements inside the browser.
github.com
KISS Translator is a simple, open-source bilingual translation extension and userscript. It supports bilingual webpage translation, input-field translation, selection word lookup, and mouse-hover translation, and includes YouTube bilingual subtitles with configurable subtitle styles. It lists built-in services such as Google, Microsoft, Baidu, Tencent, DeepL, OpenAI, Gemini, Claude, Ollama, and DeepSeek. The README notes that provider plugins, Local AI, file translation, and automatic clipboard translation are available only in the Chrome/Edge and Firefox extension builds, not in userscripts and other clients.
github.com
Lazy Tabs is an open source Chrome extension that discards inactive tabs to speed up browser startup and lower memory usage. Discarded tabs keep their title, favicon and position, and are left alone if pinned. It requests no permissions and performs no tracking. Discarding happens at startup, on icon click, or when several tabs are recreated in a burst.
github.com
LightSession is a Firefox and Chrome browser extension that keeps ChatGPT fast by keeping only the last N messages in the DOM during long conversations. It is a local-only extension that trims conversation data before React renders it, with a configurable message limit of 1 to 100 and an experimental Ultra Lean Mode.
link-extractor.cssnr.com
Link Extractor is a Chrome extension and Firefox addon that extracts, parses, or opens all links and domains from a site or text with optional filters. It also extracts links from selected text, the clipboard, selected tabs, and PDF documents, and can open multiple links or download them as a text file.
sites.google.com
Link Gopher is a simple browser extension for Firefox and Google Chrome. It extracts all links from a web page including embedded links, sorts them, removes duplicates, and displays the sorted list of unique links and unique domain names in a new tab for easy copying and pasting. Version 3 of the extension is planned to add filtering capabilities.
github.com
Linkclump Plus is a Google Chrome extension that enables opening multiple links simultaneously. It is a fork of the original linkclump project. The extension is listed on GitHub under the from-es organization and falls under browser tools and extensions.
osint.support
A Chrome extension that reverse-looks up a LinkedIn profile from an email address, returning the name, profile id, username and profile image if a match is found. It requires an active LinkedIn login session and allows up to 50 unique email addresses searched. Version 1.0 was published Sep 3, 2019.
eff.org
Manifest V3 is Google Chrome's set of changes to the web browser extensions system. The EFF describes it as harmful to privacy efforts because it restricts the capabilities of extensions that monitor or modify the browser's communication with websites, including some privacy-protective tracker blockers.
muetab.com
Mue is a fast, open and free-to-use browser extension that provides a customizable new tab page for modern browsers including Chrome, Edge, Firefox and Whale. It is open-source, contains no tracking, and stores all user data on device without sharing it without user consent. The extension offers exclusive background options, motivational quote packs, productivity and wellbeing widgets, and a Marketplace for community-submitted content. It has been maintained since 2018.
addons.mozilla.org
Multi Tabs is a Firefox browser extension. It searches for specified words across the body, title, or URL of tabs in the current window, lists matching results with context in a side panel, allows users to jump to match positions on pages, and includes functions such as tab deletion, reloading, and favicon display. It also supports jumpy access and Google search via the Alt+Enter shortcut.
newsit.benwinding.com
Newsit is a browser extension, available for Chrome and Firefox, that displays the top voted Reddit or Hacker News discussion for the page being viewed in the corner of the screen. It reads the current URL and queries the Reddit and Hacker News APIs, and the extension is free.
olsh.me
Feedly Notifier is a browser extension that enables users to read news from the Feedly RSS aggregator. It is available for Google Chrome, Firefox, Opera, and Microsoft Edge, with Safari not supported. The extension is maintained by developer olsh, with its source code hosted on GitHub.
prettierlichess.github.io
Prettier Lichess is a Chrome and Firefox extension that restyles lichess.org and lets users customize the site's complete color palette, with import and export of palettes. The extension is under constant development, and some page elements may not be styled correctly.