Ok if you are like me then you use the FF Web developer toolbar allot. I noticed it went away after a windows update. My productivity went down since the addon makes it so easy to debug websites or test out some css w/o committing the style. It took a few hours of testing / searching but here is the FIX:

1. Open Regedit (Start > Run > “regedit”)
2. Goto “HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox\extensions”

(or “HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Mozilla\Firefox\extensions” for 64-bit versions of Windows

3. You’ll see “{20a82645-c095-46ed-80e3-08825760534b}”. Right click it and click Delete.
4. Restart Firefox.

Thanks to Piel @ ghaks for the tip.

This entry was posted on Friday, October 16th, 2009 at 10:11 am and is filed under Web Design, Web Development. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.