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System regularly hanging with Adobe Flash/Shockwave Flash?

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When my Shockwave Flash plugin is enabled, it causes FireFox 4.0 to regularly hang when visiting websites. All I will see is a white background and an hourglass, then I will see "...Mozilla Firefox (not responding)".

If I disable it the plugin, then I can't watch video on most websites. How do I get flash working with Firefox 4.0?

By the way -- it didn't work with my old version of flash -- I just updated flash five minutes ago to the latest version and it still doesn't work.

When my Shockwave Flash plugin is enabled, it causes FireFox 4.0 to regularly hang when visiting websites. All I will see is a white background and an hourglass, then I will see "...Mozilla Firefox (not responding)". If I disable it the plugin, then I can't watch video on most websites. How do I get flash working with Firefox 4.0? By the way -- it didn't work with my old version of flash -- I just updated flash five minutes ago to the latest version and it still doesn't work.

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I have been experiencing the identical issues as described above on an HP dv7 Notebook with ATI Radeon H3200 Graphics card. This seems to have started after downloading a bunch of Microsoft Windows updates a couple of days ago. I now have to keep the Shockwave Flash plug-in (10.2.153) disabled or each new web page I try to view hangs for 45-60 seconds. As a work-around I have been using Chrome to view web content requiring Adobe Flash.

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It appears I was able to resolve this problem by following all of the steps here: https://support.mozilla.com/pa-IN/questions/808868#answer-166820

I downloaded the latest Shockwave Flash plug-in (10.2.159) specifying the version for Firefox. Maybe version 159 tweaked the plugin container and stopped the "not responding" issue. Fingers-crossed.