Display the Google PageRank, Alexa rank, Compete ranking and SEOmoz Linkscape mozRank anywhere in your browser, along with fast keyword density analyser, keyword/nofollow highlighting, backward/related links, canonical links, WHOIS, robots and more.
Firebug extension to view which CSS rules are actually used.
Just a simple extension to highlight links in a page according to nofollow / dofollow status.
Pixel Perfect is a Firefox/Firebug extension that allows web developers and designers to easily overlay a web composition over top of the developed HTML.
Screengrab! saves webpages as images... but not for new versions of Firefox.
FF changes too fast and I don't have the time to maintain it anymore. Bugs have developed that I am not in a position to investigate.
Therefore, Screengrab is EOL.
SenSEO is an extension checking the most important on-page-SEO-criteria and calculating a grade of how good your site fulfills these criteria.
Oxygen style for Firefox!
Consistent and coherent integration with KDE!
Provides CPU usage and memory usage graphs on the toolbar.
Provides quick access to some web-based tools to help with search engine optimization. Quickly check inbound links, PageRank, http headers, and much more. Right-click on an open area of a web page, or use the included toolbar.
Collections are groups of related add-ons that anyone can create and share.Explore Collections