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Having more than four tabs open causes Firefox to become non-responsive, lagging for sometimes up to 5 minutes and can't close it without task manager.

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If I try to open a fifth tab, or try to pin a tab Firefox mutes, or whites out and the mouse freezes. When this happens the title bar states that it is, "unresponsive." I either have to wait until it starts moving again to restart it because I have no close button, and this takes up to 5 minutes and sometimes even more, or I have to crash it using the task manager (ctrl + alt + del) when it takes longer. Also, any time I try to pin a tab it does the same thing with a single pinned tab. If I try to open firefox after a crash, it immediately becomes unresponsive for an even longer time.

If I try to open a fifth tab, or try to pin a tab Firefox mutes, or whites out and the mouse freezes. When this happens the title bar states that it is, "unresponsive." I either have to wait until it starts moving again to restart it because I have no close button, and this takes up to 5 minutes and sometimes even more, or I have to crash it using the task manager (ctrl + alt + del) when it takes longer. Also, any time I try to pin a tab it does the same thing with a single pinned tab. If I try to open firefox after a crash, it immediately becomes unresponsive for an even longer time.

All Replies (2)

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Hi,

As the first thing I would recommend updating to firefox 12. Updates include bugfixes as well as security patches. You may find that solves your problem.

If not check back and I'll try to help.

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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).