The SEO Toolbar shows PageRank, Alexa, Popularity Index, Compete & SEMRush Rank for any website you visit - all on the one toolbar. Other SEO features include Search Engine view, server header view, Wayback Machine button and handy website links.
SEM Tools automates the manual, tedious tasks of running a PPC campaign so that you can do what you are good at... marketing and analysis.
Google with operators
Tools for working with rapidshare and links from other popular file hosting and sharing services.
Features: get rapidshare links from a page, test selected rapidshare links, search rapidshare files for selected terms, etc.
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.
Galaxier Search Bar that allows you to use Galaxier search aggregation functionality at all times.
Magic Tab - is an extension that adds search tools to the new tab page. After you installed this add-on to your Firefox, the search tools are opened in new tab always. The add-on is designed to help you search the web quickly and more productively.
One-click eBay tools providing useful information to the buyer including a map of where items are located, past feedback on similar items and seller history/statistics.
Access and activate the native Firefox Web Developer tools faster through this toolbar button (menu). Button can be placed on any toolbar.
Search Cloudlet inserts smart tag clouds into Google / Yahoo / Twitter interface to help you search faster. This free productivity-boosting add-on was featured at LifeHacker, PC World, Website Magazine, etc. Install it now to add magic to your search
'The [Shopping Toolbar for] eBay Toolbar is an excellent Firefox add-on that lets you quickly access things like your eBay auctions, price comparisons for various products and customer reviews' -Skip McGrath
TeamFound gives a team the capability to share search results without any usage-overhead. The toolbar can be used to mark interesting pages and full-text-search those while also showing normal search-engine results for the same keywords. Go to...