
- Rank Checker by seobook.com for ranking spot checks
- Live HTTP header for seeing what’s going on in the background.
- Speeddial – allows you to set up to 9 pretty bookmarks (Chrome ripped it off), comes with Page Info which tells you the top level info all in one place.
- Stumbleupon toolbar for when you get bored with the net and see something new!
- CookieWatcher – show value of cookie in statusbar (i.e. SESSID)
- Download Statusbar – screen real estate efficient download status indicator
- Firebug + Firecookie for working out how things are actually working and mocking up changes
- PDF Download – provides more control over what happens when you click on a link for a PDF
- User Agent Switcher – quick switch to different user agents
- Web Developer – oldy but goody
- FoxClocks – show time from various time zones
- Tiny Menu – customise menu bars. Mine is a single menu that opens to reveal all of the standard Firefox menus
Can you think of any others?