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There is a black horizontal bar right above the tabs

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there is a black horizontal bar right above the tabs since I installed the latest version of firefox.

This happened

Every time Firefox opened

== after the latest version was installed

there is a black horizontal bar right above the tabs since I installed the latest version of firefox. == This happened == Every time Firefox opened == after the latest version was installed

All Replies (2)

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This issue can be caused by a plugin or an extension that is not compatible with Firefox 3.6 and isn't working properly anymore. 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

See also Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

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I have deleted/disable that toolbar but nothing happen.That bar still exist.What should I do?