support.mozilla.org
Firefox Reader helps search books, ebooks, papers, library records, or reading archives.
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relay.firefox.com
Firefox Relay creates email masks that forward messages to the user's true inbox, protecting online accounts from unwanted messages. Users manage masks from a Relay dashboard and can create unlimited masks with Relay Premium. A limited protection tier is available free.
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
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.
addons.mozilla.org
Multiselect (Firefox) is a social media utility for platform customization, archives, embeds, or community tools.
pwasforfirefox.filips.si
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.
reddit.com
Reddit community for discussions, recommendations, and shared resources about FirefoxCSS.
addons.mozilla.org
Sage-Like is a fast, lightweight sidebar-based feed reader extension for the Firefox browser. It supports Atom, RSS, JSON and RDF feeds, offers a customizable user interface, and integrates with Firefox bookmarks and sync functionality. It can discover feeds from the sidebar and address bar, including hidden RSS feeds on platforms such as YouTube, Reddit, DeviantArt, Pinterest and Behance, and has a customizable feed tree view.
addons.mozilla.org
SwiftTheme is a Firefox browser extension that allows users to apply custom color themes to their browser interface. It offers more than 3 million color options, an intuitive color picker, automatic adaptation to selected colors, multiple theme variants, compatibility with older Firefox designs, and no conflicts with other browser themes. User settings are stored locally on the device and no user data is collected by the extension. A related SwiftDial homepage extension is also available from the developer.
github.com
Want My RSS is a Firefox extension that restores some RSS functionality the browser removed, including a URL bar indicator for available feeds, a feed preview page, and a subscribe button. Version 0.39 added Firefox for Android support, a toolbar feed counter, a system feed reader option, and requires Firefox 98 or newer.
github.com
Source code for Brief, a Firefox extension for reading RSS and Atom feeds. The repository links to the published add-on, documentation, and project support channels.
github.com
Firefox add-on that sorts bookmarks by multiple criteria. It requires Firefox 142 or later. Settings include an auto-sort option, an inactivity wait, case-insensitive sorting, first and second sort criteria with inverse order, folder sorting options, folders-first ordering, and a tab to exclude folders from sorting.
github.com
Betterfox is a user.js configuration file of about:config tweaks intended to enhance Mozilla Firefox privacy and security without third-party code. The project includes the user.js, described as containing all the essentials, plus guides named Securefox, Peskyfox and Smoothfox covering settings within Firefox.
thechiefmeat.com
A guide explaining what Firefox containers are and how to use the Firefox Multi-Account Containers addon with the Temporary Containers addon to increase browsing privacy. It covers installation and configuration steps and describes assigning frequently visited sites to their own containers.
addons.mozilla.org
Copy Selected Links is a browser extension developed by Marnes. It enables users to right-click selected text containing links to copy the URLs of all included links, copy their associated text, or open the links in new tabs. The extension is available for Firefox and Chrome, with its source code hosted on GitLab. Updated versions of related tools from the developer are available on their Greasyfork account.
f-droid.org
Fennec F-Droid is an Android web browser based on the latest Mozilla Firefox release, with proprietary bits and telemetry removed. It offers addons including ad blockers, tracking protection, private mode, tab collections, picture-in-picture and Firefox Sync. The listing notes it still connects to various Mozilla services that can track users.
github.com
ff2mpv is a browser extension for playing URLs in mpv. It works on Firefox, Chrome and other Firefox or Chromium-based browsers. Clicking the toolbar icon makes mpv attempt to play the current URL, and a context button plays a specific URL. Installation involves the addon plus a native host.
scratchaddons.com
Scratch Addons is an all-in-one browser extension for the Scratch website and project editor that combines new and existing features and themes, called addons, into one configurable extension. It includes over 100 addons that can be enabled or disabled individually, and its interface is available in multiple languages. The project is free and open source and built by a community of Scratchers.
github.com
FastStream is a browser extension that replaces videos on websites with its own video player. It pre-buffers video in the background and uses parallel requests, and offers subtitle features, audio and video adjustments, and remappable keybinds. It supports MP4, HLS and DASH streams. Livestreams and DRM-protected content are not supported, and the player is described as a work in progress.
firefoxcss-store.github.io
FirefoxCSS Store is a community hub for discovering and sharing Firefox userChrome.css themes. It hosts a collection of user-submitted themes, offers search and sorting functionality, and provides access to theme repositories and related community resources.
flagfox.wordpress.com
Flagfox is a Firefox extension with a development blog that posts update release notes. Recent entries cover versions 6.2.2 through 6.2.6 for Firefox 115+, listing fixes, options page changes and monthly IPv4 and IPv6 address location database updates.
addons.mozilla.org
FoxyLink is a Firefox extension that adds link-related actions to the browser context menu. Its features include opening, copying, or saving selected links, removing duplicate URLs, and grabbing URLs from mixed text and hyperlinks. The developer states the extension contains no tracking, advertising, or privacy infringement.
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
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.