Cookie-Editor is an open-source browser extension for creating, editing and deleting cookies for the current tab. It lists cookies on the current page, allows creating, editing and deleting cookies, and can import cookies or export them to the clipboard. It is available for Chrome, Firefox, Safari, Edge and Opera.
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Copycat is a browser extension for copying content from web pages. It supports Chrome, Edge and an old Firefox version, and can copy tab titles, links and selections as plain text, HTML, Markdown and other formats. Images, audio and video can also be copied in some formats.
A browser fingerprinting test page that reports a range of signals, including timezone, Intl data, headless-browser and stealth percentages, WebRTC connection details, WebGL, screen properties, canvas, audio, fonts, speech and media information. It also lists JS/DOM, CSS and window feature results and provides a test interface with sections for workers, iframes, fonts, timezone and extensions.
Custom Dark Mode customizes website colors, themes, dark mode, or browser appearance.
Dark Reader is an open-source browser extension that enables a dark theme on websites for night and daily browsing. It is available for Chrome, Firefox, Edge and Safari, and its brightness, contrast and sepia settings can be adjusted and enabled for all sites or particular domains.
DigitalFeed hosts a browser-based ABX test that compares lossless and lossy music samples, modeled on a test by the streaming service Tidal. It asks whether users can tell the difference between lossless and lossy audio on their audio system. The test requires browser support for the Web Audio APIs, which Internet Explorer lacks.
Download Archived Mods is a userscript page for adding browser features, interface tweaks, or automation to websites.
Userscript for DownloadAllContent, adding browser customization or automation to supported websites.
DownThemAll is a browser extension that adds advanced download capabilities, letting users download links or images on a website and refine downloads with customizable filters. It allows queuing, pausing and resuming downloads and is integrated into the browser.
Eaglercraft is a version of Minecraft rebuilt to run in a web browser using JavaScript and WebAssembly. Players can build and survive in singleplayer, join multiplayer servers, or open their own world for others to join. It runs on Chromebooks, phones and other devices with a browser, and supports resource packs.
edit.photo is a free online photo editor that runs in the browser. It has no ads, popups, cookies or accounts, and photos are edited in the browser rather than uploaded. It supports JPEG, PNG, WEBP, HEIC, GIF and animated GIFs.
Emoji Addon is a free, open-source browser add-on for using emojis. It offers keyword, colour and gender search, a most-used emojis section and keyboard shortcuts, and settings can be customised. Auto-insert and auto-copy place selected emojis in text boxes or the clipboard.
Userscript for Enhancements, adding browser customization or automation to supported websites.
A page comparing the most popular cross-platform desktop and mobile browsers and their features. It limits testing to seven browsers available on PCs and phones and excludes regional browsers. It includes tables on developer, engine, and usage share, and states it was last updated on 13 October 2026.
Userscript for Fandom Focus, adding browser customization or automation to supported websites.
Firefox Color customizes website colors, themes, dark mode, or browser appearance.
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.
Floccus is software for syncing bookmarks and tabs privately across browsers and devices. Apps are available for browsers, iOS and Android, syncing via a Nextcloud, Linkwarden, KaraKeep, Git or WebDAV server, or via Google Drive or Dropbox. It is free and open source software with no ads and no data collection. Safari is currently not supported due to technical limitations.
Floccus is a browser extension and mobile app that syncs native browser bookmarks privately across browsers and devices. It supports sync via Nextcloud Bookmarks, Linkwarden, KaraKeep, Google Drive, Dropbox, Git servers and WebDAV services. Users can create multiple sync profiles and control sync strategy, interval and synced folder.
FuseBase Capture is a free browser extension for Chrome, Firefox, and Edge that enables users to take screenshots, record screencasts of desktops or browser tabs, and create webcam videos. It is part of Nimbus Web Inc's product suite for team collaboration.
Gog To Free is a userscript page for adding browser features, interface tweaks, or automation to websites.
Userscript for Google Hit Hider, adding browser customization or automation to supported websites.
Userscript for Helper, adding browser customization or automation to supported websites.
A troubleshooting guide for websites that fail to load. It lists steps including a hard refresh, clearing site cookies, using a fresh browser profile or private tab, changing IP country with a VPN or proxy, switching browser engine, flushing DNS in PowerShell and disabling web protection in antivirus software.