Browse 1,948 Mozilla Firefox Plugins, Add-ons and extension on AlternativeTo including popular Mozilla Firefox options.
With Advanced YouTube to MP3 converter you can easily convert and download any YouTube video to mp3 or mp4.
? No software needed to be installed ? Very fast thanks to the fast cloud behind it ? 100% Free to use ? Compatible with Adblock plugins.
BananaTag lets you easily track your emails, so you can see who has opened them and clicked your links. Our real-time metrics allow you to better manage your daily emails.
Categorize, mix, match and mingle all your add-ons in one slick spot built into your browser. Migrate collections from machine to machine, ping your friends with top recommendations, and subscribe to collections you admire, so you'll hear when they grow.
Squire is an HTML5 rich text editor, which provides powerful cross-browser normalisation, whilst being supremely lightweight and flexible. It is built for the present and the future, and as such does not support truly ancient browsers.
Flash Save and Download from your browser
Detect almost every Flash on remote web page. One click to download. Help you to do any Flash download fast and easy. Capture online SWF onto local machine or portables for view. Works as plugin for IE, Safari, Firefox, C.
Read faster and more easily with our digital reading technology, which has won awards from Stanford and United Nations!
Search through your tabs instantly, save windows for later, limit open tabs per window - and many more.
Automatically sort bookmarks by title, date, or URL. Review and improve your collection with a suite of tools.
RightTasks places your Google Tasks in a right sidebar in Gmail, like in Google Calendar.
See your next events, get meeting desktop notifications, add or snooze events without opening the Google Calendar page!
If you have multiple logins for web based e-mail accounts (like Gmail and Yahoo! mail), then CookieSwap enables you to easily switch between those different accounts by swapping the 'cookies' that the sites use to know you.
An extension which supports one-click downloads of illustrations from Pixiv. It's able to choose automatically appropriate file names.
This extension allows you to execute common commands using mouse gestures, rocker navigation, scroll wheel navigation and page scrolling.
This add-on can be used to clear all those preferences left by extensions after uninstallation, all those garbage which some developers do not care on clearing themselves on their add-ons and which later or sooner will make Firefox to load slower.
Menu Icons Plus iconifies your Firefox menus and more! It includes several different icons sets to choose from, along with the ability to import/export icon sets. It also provides options for changing other aspects of the menus' appearance.
This extension allows you to enter data into the Password Manager database instead of relying on Firefox, Thunderbird, SeaMonkey, etc., to do it, as well as making changes to existing entries.
? Click a bunch of tags in the sidebar or menu to see the bookmarks and other tags that are related. Use the related tags to quickly filter your search.
Password Manager by Icecream Apps lets you protect and manage passwords, secure notes, credit cards, passports and other sensitive data. Windows version. Free Download.
Plasma Browser Integration is an extension for common browsers to closer fit into the Plasma shell.
PDF Mage lets you save the page you are currently viewing as a PDF file with a single click of a button.
Markdown document viewer. Allows to visualize formatted markdown documents in browser.
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