FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.
YouTube Control Center is an open-source project that aims to enhance the overall YouTube experience by providing the end user with more control in what the playback process is concerned.
Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.
Enables desktop notifications like in Chrome (e.g. Gmail, imo.im) and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!
Pearltrees lets you organize everything.
Switch website you want to dark mode. Dark mode will help devices save battery and reduces strain on your eyes.
Scrobble music from vk.com to last.fm
F.B. Purity hides the ads, app spam and other annoying clutter from your facebook news feed, lets you increase the font size, change colours plus many more features and generally makes Facebook a lot less annoying to use.
Switch Youtube to dark mode. Dark mode will help devices save battery and reduces strain on your eyes.
Unblock any blocked website and stay secure with Hotspot Shield. Easy use with one-click activation. Unlimited bandwidth!
1-Click to download any Facebook video. Choose if you want video or just an image. Compatible with new Firefox Quantum 57+ Addon uses 3rd party site (www.getyourfb.com) for operation.
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook.