Desktop dims when Thunderbird and Firefox are launched

Posted by deshmukh on Ask Ubuntu See other posts from Ask Ubuntu or by deshmukh
Published on 2012-10-01T09:52:15Z Indexed on 2012/10/15 9:49 UTC
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Filed under:

compiz

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firefox

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thunderbird

I am running Ubuntu 12.04 (almost default install regularly updated) Unity interface on ASUS X53U (AMD Brazos Dual Core C60 with 2GB RAM).

On launching Thunderbird and Firefox, the application dims and the cursor changes to wait mode. In case of Thunderbird, this is most pronounced with the wait time of up to a minute.

Memory status checked with free indicates around 500MB of free memory on such occasions. The OS is stable and I can switch to a different work-space, etc.

What could this be? Is this something normal?

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