Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.
Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on...
The Web Developer extension adds various web developer tools to the browser.
Seoquake is a Firefox SEO extension aimed primarily at helping web masters who deal with search engine optimization (SEO), social media optimization (SMO) and internet promotion. Seoquake allows to investigate many important SEO parameters.
Status bar widgets and progress indicators for Firefox 4+
Keep track of how much time you spend on the web, and where you spend it. Ticker widget shows (1) time spent at the current site and (2) total time spent on the web today. Summary page sums up data for the past 70 days, 10 weeks, and 6 months.
Pencil is a Firefox add-on to do GUI prototyping and simple sketching
Zbirke so skupine sorodnih dodatkov, ki jih lahko vsakdo ustvari in deli z drugimi.Razišči zbirke