This add-on for Firefox provides a few options to make the sidebar more accessible and customize it.



This add-on for Firefox provides a few options to make the sidebar more accessible and customize it.



Context Highlight is a Firefox extension that allows you to highlight all instances (within a webpage) of a word, several words, or a phrase that you currently have selected. Right click anywhere on the page and choose "Clear Highlighting" to reset the page.



TwitDloader is a browser extension that lets users download high-quality Twitter/X videos with a single click. It supports multiple resolutions, an intuitive interface, and more.




Block ads on the right side of the screen when using Gmail, Yahoo Mail, Hotmail and Outlook.com which expand your message space


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.

This provides features to handle multiple tabs at once, for example, close them, reload them, and so on. When you press the mouse button and dragging over tabs, they will be selected. (Note: The tab will be just moved, if you move the mouse quickly.




As wireless networks proliferate, web browsers operate in an increasingly hostile network environment. The HTTPS protocol has the potential to protect web users from network attackers, but real-world deployments must cope with misconfigured servers, causing imperfect web sites...
Survol is an open-source browser extension letting you preview any link you hover. It uses either API data or meta-data when there is no API.





Yasminoku is a sudoku game, generator and solver created by Joan Alba Maldonado on 25th of July 2006 which has been now improved.




Hides the Ads panel in post-Oct. 2013 Yahoo! Mail's Basic version, to give you a full-width Premium mail reading experience for free! Doesn't Adblock Plus do that already, like hiding ads and all? : No.




Chrome Download Manager. Bring Google Chrome like Download shelf into Firefox.
You can track download progress, open containing folder by default and manage all downloads like in Google Chrome provides.
Open Source Password Manager. Passman allows you to host your passwords and credentials on your own Nextcloud or ownCloud instance. The encryption is done on the client and server side with AES256 bit encryption.




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.
Chrome highlighter that quickly and easily puts your highlights into Roam format for easy pasting into your notes. This Highlighter extension is meant for use with the Roam Research note taking application (but can be used for other purposes as well).

Ever wanted to attach a memo to a web page? some personal information, which will be there on your next visits? Now you can - with MemoMe!



Search through your tabs instantly, save windows for later, limit open tabs per window - and many more.



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.
Automatically sort bookmarks by title, date, or URL. Review and improve your collection with a suite of tools.








Mailcastr is an email tracker app for Gmail and Inbox which shows when your email is opened/read by the recipient. Mailcastr android app helps you to stay updated wherever you are with real time push notifications and updates.




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.