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Updated Fire Fox and now have an annoying horozontal black line across my screen!! Why does Fire

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I updated Fire Fox to be landed with an annoying horozontal black strip across my screen. This has happened on a previous update but was fixed by disabling plugins however not this time. I think I may need to drop Fire Fox as this happens on every Fire Fox update!!!!

I updated Fire Fox to be landed with an annoying horozontal black strip across my screen. This has happened on a previous update but was fixed by disabling plugins however not this time. I think I may need to drop Fire Fox as this happens on every Fire Fox update!!!!

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A toolbar like the "ZoneAlarm Spy Blocker Plugin Stub for 32-bit Windows" and other toolbars like "Ask.com" or "My Web Search" can cause this issue.

See http://kb.mozillazine.org/Issues_related_to_plugins#Identifying_installed_plugins