Remove all annoying ads from YouTube.
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more.
Helps you fix annoying sound problems on sites like YouTube: audio in one channel only, too quiet or too loud. (Unfortunately, this extension does not work on all websites because of cross-domain issues — but it does work on YouTube!)
Tabby helps you manage a lot of windows and tabs easily; it can help you open, close, move, pin, and do many other things on tabs and windows quickly. With Tabby, you can even save all you windows and tabs for later with just one click!
Show tabs like a tree.
OneTab - Too many tabs? Convert tabs to a list and reduce browser memory
Create, modify, and quickly change tab groups
Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.
Right-click a section of text and click the Translate icon next to it to text translate or listen to it in your language.
Translate your page in real time using Google or Yandex. It is not necessary to open new tabs. Now works with the NoScript Extension.
Quickly translate selected or typed text on web pages. Supports Google Translate and DeepL API.
COMPLETELY REDESIGNED TRANSLATOR FOR FIREFOX ImTranslator translates text, words, webpages between more than 100 languages. NEW: Inline Translator, Dictionary, access to Google Translate, Microsoft Translator. Unique on the fly localization.
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats.
The Mass Downloader for your browser
A download manager with the ability to pause and resume downloads, download remote files, and more.
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
Completely remove ALL ads. No “acceptable” ads or whitelisted advertisers allowed. This free extensions also helps block trackers and malware.
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites.
The best security you can get in a web browser! Allow potentially malicious web content to run only from sites you trust. Protect yourself against XSS other web security exploits.