addons.mozilla.org
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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.
addons.mozilla.org
CRXInstaller is a Firefox browser extension developed by FoxRefire. It enables users to install Chrome browser extensions on Zen, Firefox Nightly, Firefox Developer Edition, Librewolf, and Firefox for Android. Use with standard Firefox requires additional configuration steps. The developer warns that installing untrusted extensions poses serious security risks and disclaims liability for any resulting damage, with the extension's source code available on GitHub.
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
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.
addons.mozilla.org
Multithreaded Download Manager is a Firefox browser extension. It downloads files using multiple simultaneous connections to the server, which may improve download speed depending on network conditions. Users can adjust Firefox configuration settings to use more than 6 download threads. The extension does not collect or upload user data, and requires sufficient disk space as files are first stored in Firefox's internal storage.
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.
addons.mozilla.org
Chrome Mask is a Firefox browser extension that lets users toggle a setting to make Firefox appear as Google Chrome to websites that block Firefox access. Unlike generic user agent spoofing extensions, it only applies the Chrome user agent to user-selected specific sites rather than all sites, and automatically updates the Chrome version it pretends to be.
addons.mozilla.org
Browser extension for Firefox Addons, adding useful tools or workflow improvements inside the browser.
addons.mozilla.org
ContextSearch web-ext is a Firefox browser extension compatible with Firefox 57 and later. It lets users select text to search using the context menu or a tiled popup with any installed search engine. Users can add new search engines via right-click, edit favicons and query strings, and the extension supports both POST and GET requests, with a simple, highly configurable user interface.
saucenao.com
SauceNAO Tools offers an official browser extension called Image Search Options. It adds customizable context menu options for images, enabling quick use of various image search tools including IQDB and SauceNAO. The extension is available for Chrome and Firefox, with potential support for additional browsers if there is sufficient interest. It also provides download links for Chrome Web Store, Firefox AMO, a XUL version for legacy Firefox and Pale Moon, and a CRX file for Chromium.
addons.mozilla.org
Joplin Web Clipper is a Firefox browser extension that allows users to capture and save web pages and screenshots to the Joplin notes application. The Joplin desktop application is required for the extension to function. The extension may send captured data to a locally running Joplin instance at the user's request, and does not share this data with third parties.
addons.mozilla.org
Firefox Extensions is a mobile app resource for Android or iOS listings, app pages, updates, or community links.
addons.mozilla.org
Bookmark Batch-Updater is a Firefox browser extension that modifies properties of multiple bookmarks at once. It supports replacing http with https in bookmark URLs, swapping domain names, and using regular expression mode to edit parts of bookmark URLs or bookmark names. A noted Firefox bug may cause URL changes to remove bookmark tags.
addons.mozilla.org
Container Tab Groups is a Firefox browser extension that creates Chrome-style tab groups using Firefox's native private container tabs. It requires no additional configuration or other add-ons, and supports per-container overrides for preferred languages, user agent strings, and proxy settings. Users can create isolated container tab groups for separate tasks, and delete groups when finished to clear associated cookies and clutter.
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.
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.
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.
chromewebstore.google.com
Browser extension for Chrome Extension, adding useful tools or workflow improvements inside the browser.
chromewebstore.google.com
Browser extension for Extension Manager, adding useful tools or workflow improvements inside the browser.
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.
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.
addons.mozilla.org
Temporary Containers is a Firefox browser extension that opens tabs, websites, and links in automatically managed disposable containers. These containers isolate website-stored data including cookies and local storage from each other to enhance user privacy and security while browsing. It supports fully automatic operation based on navigation targets, configuration for specific websites, activation via configured mouse clicks or the toolbar icon, and automatic deletion of history, cookies, and scripts after use. The extension is free and open source.