Directory
Browser tools and extensions covers add-ons, userscripts and utilities that change how you browse the web. Listings include extensions for Chrome, Firefox and similar browsers, along with userscripts, bookmark managers, tab tools and privacy add-ons. Some entries are official store pages, and others are open projects you install from a repository. The permissions each add-on requests, the last update date and the number of maintainers tell you a lot about it. Extensions can read and change page data, so install from a source you trust and confirm what the add-on actually does.
MyBrowserAddon is a community platform for open-source projects. It helps developers create and share open-source projects, and provides documentation, tutorials, frequently asked questions and bug report forms for open-source software. The platform is dedicated to developers interested in learning about and contributing to open-source projects.
OpenUserJS is a site for downloading userscripts to enhance your browser. Its home page lists userscripts with names, install counts, ratings and update dates, including tools to bypass link shorteners, block YouTube autoplay previews, view manga pages online and widen GitHub pages. The site states that continued use constitutes agreement to its Terms of Service and Privacy Policy.
Pagetual is a userscript that merges the next page of a website into the current page for continuous scrolling. Compatible with Chrome, Firefox, Edge, and Safari, it analyzes page structure to find the next link instead of requiring custom rules.
PronounDB is a browser extension that lets people share their pronouns and see the pronouns of others on supported sites. It offers integrations for platforms including Discord, GitHub, Twitch and Twitter, and provides an API for third-party developers. Extensions are available for Chrome, Firefox and Edge.
PWAsForFirefox is a tool for installing, managing and using Progressive Web Apps in Mozilla Firefox. Because Firefox does not support installing PWAs as standalone system apps, the project provides a custom modified Firefox runtime, a console tool and a browser extension. Installed PWAs run in their own windows without tabs or an address bar.
Rambox is a desktop workspace that organizes work apps, accounts and workflows in one place. It offers customizable workspaces, session management, multi-login for multiple accounts of the same app, a tile view and more than 700 ready-to-use apps, plus custom web apps. A focus mode pauses notifications. Plans are Basic, Pro and Teams; new accounts start with a 30-day Pro trial.
Shortkeys is a free and open source browser extension for Chrome and Firefox that lets users customize keyboard shortcuts. It provides over 100 built-in actions covering tab management, scrolling, navigation, zoom, bookmarks, downloads and video controls, along with custom JavaScript actions, shortcut packs, groups, macros, a shortcut recorder and cloud sync.
Smooth Key Scroll is a browser extension for keyboard-based page scrolling. It offers adjustable speed, with Alt to speed up and Ctrl to slow down during scrolling, and custom directional key layouts including Gamer, Vim and Ergonomic options. An option disables mouse hover effects while scrolling. It is available in the Chrome Web Store.
SocialFocus is a browser extension that hides distracting and addictive elements of social media sites so users can personalize their feeds. It covers 7 websites with more than 115 options and is available for Safari, Chrome and Firefox. Key features include one-tap activation, password protection against unauthorized settings changes, and launch tweaks.
Streak is a browser extension or add-on that improves everyday web browsing workflows.
Stylebot is a browser extension that lets users point at elements on a page and change them; it writes the CSS and loads the style each time the user returns. It is free and open source for Chrome, Firefox and Edge on desktop, and includes a CLI.
Supatabs is a Chrome tab management extension that saves open tabs to a searchable list and supports tab groups and a filter. Saved tabs can reduce Chrome memory usage, and a PRO upgrade syncs saved tabs across devices.
Tab Session Manager is a WebExtension that saves and restores the state of windows and tabs, and supports automatic saving. It is available for Chrome and Microsoft Edge, with development and translation resources listed.
Tablerone is a Chrome extension for managing tab sessions and bookmarks. It offers auto-saving of browsing, workspace switching, and a combined shortcut for finding open or saved tabs. It can export tab URLs, meta titles and notes, and automatically discards idle tabs to free RAM and CPU.
Text Blaze is a text expansion application and Chrome extension for saving reusable snippets and dynamic templates with shortcuts. Snippets can be inserted in apps such as Gmail, Google Docs, LinkedIn and Salesforce, and support forms, formulas and sharing with colleagues. It is also available as a macOS and Windows app.
ThemeBeta offers downloads of free Google Chrome themes, Edge browser themes and Windows theme skins. It also provides online Chrome Theme Creator and Windows Theme Creator tools for creating and editing theme skins. Featured themes are listed for Chrome and Windows in various resolutions.
Transpose is a browser extension or add-on that improves everyday web browsing workflows.
Firefox extension for Vim-like browser control, keyboard navigation, and command workflows.
Ui.Vision RPA is an open-source browser and desktop automation tool for building reusable macros. It offers web automation, desktop automation, web scraping, UI testing and test automation, using visual recording, Selenium-style commands or a JavaScript API. The V10 release adds an AI macro assistant and an MCP bridge for connecting AI assistants. The browser extension is available for Chrome, Edge and Firefox.
Userscript.zone is a search platform for userscripts. It lets users search through a collection of frequently used userscripts, and provides tools to filter results, including options to show scripts with broad host permissions. The site also offers guidance on how to install userscripts, a feedback option, and pages for privacy policy, cookie settings, and site imprint.
Uso is a browser extension or add-on that improves everyday web browsing workflows.
VsyncTester is a web-based tool for checking browser VSYNC synchronization, display refresh rate, and input lag. The site also links to related test tools, including a display Hz tester and a GPU memory usage tool, and to pages documenting VSYNC issues in Chrome.
WebCRX is a Chrome extension utility designed to let users easily and safely install local CRX files in Chrome, with built-in permissions management. It is an independent tool with no affiliation to Google or the official Chrome Web Store, and offers support and contact options for users.
WebExtension.ORG offers free web-hosting space for browser-based open-source applications, with product pages that update release notes and fetch bug reports from github.com. It also provides anonymous bug reporting, RSS feeds for products connected to addons.mozilla.org, and technical support for hosted developers. The site states it is in transition as add0n.com migrates to webextension.org.
