battlefieldheroespatcher@ea.com Battlefield Heroes Updater - OK
check4change-owner@mozdev.org Check4Change - OK
chromifox@altmusictv.com Chromifox Basic - OK
elemhidehelper@adblockplus.org Adblock Plus: Element Hiding Helper - OK
en-GB@dictionaries.addons.mozilla.org British English Dictionary - OK
linkalert.conlan@addons.mozilla.com Link Alert - OK
notooltiptimeout@extensions.geckozone.org No Tooltip Timeout - OK
ru@dictionaries.addons.mozilla.org Russian spellchecking dictionary - OK
twitternotifier@naan.net TwitterFox - OK
{02450954-cdd9-410f-b1da-db804e18c671} Screengrab - OK
{0545b830-f0aa-4d7e-8820-50a4629a56fe} ColorfulTabs - OK
{1018e4d6-728f-4b20-ad56-37578a4de76b} Flagfox - OK
{20a82645-c095-46ed-80e3-08825760534b} Microsoft .NET Framework Assistant - OK
{446c03e0-2c35-11db-a98b-0800200c9a67} Favicon Picker 3 - OK
{46551EC9-40F0-4e47-8E18-8E5CF550CFB8} Stylish (disabled) - OK
{46868735-c3fa-47ce-8ce7-cce51a66aceb} oldbar (disabled) - OK
{4BBDD651-70CF-4821-84F8-2B918CF89CA3} FEBE - OK
{5546F97E-11A5-46b0-9082-32AD74AAA920} InFormEnter (disabled) - OK
{9fb8c270-7124-11dd-ad8b-0800200c9a66} Download status (disabled) - OK
{A4732521-77D9-447E-A557-B279AC923F06} Image Toolbar (disabled) - OK
{AE37D527-6604-461c-8102-975CF8053A2F} BBCode - OK
{AE93811A-5C9A-4d34-8462-F7B864FC4696} StumbleUpon - OK
{b0e1b4a6-2c6f-4e99-94f2-8e625d7ae255} Abduction! - OK
{C0CB8BA3-6C1B-47e8-A6AB-1FAB889562D9} QuickNote - OK
{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d} Adblock Plus - OK
{D4DD63FA-01E4-46a7-B6B1-EDAB7D6AD389} Download Statusbar - OK
{dc572301-7619-498c-a57d-39143191b318} Tab Mix Plus - OK
{e4a8a97b-f2ed-450b-b12d-ee082ba24781} Greasemonkey - OK
{e968fc70-8f95-4ab9-9e79-304de2a71ee1} User Agent Switcher - OK
{ef4e370e-d9f0-4e00-b93e-a4f274cfdd5a} FoxTab - OK

Поотключал, не помогло.
Вырубил всё - не помогло.
Создание нового профиля - не помогло.

Infocatcher
Ха, точно. Спасибо.