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FF becomes unresponsive if minimised in dock/ left idle.

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  • 3 have this problem
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  • Last reply by finitarry

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I'm running Mountain Lion on a 2009 Intel MacBook Pro. Since upgrading to Firefox 18.0.1 a few days ago, my system, at times, becomes unusable:

- when active, Firefox is clean, supple and very fluid. - when left idle (background) or minimised to the dock for a short length of time, it becomes unresponsive. - this then has a knock-on effect on my system and renders it unusable:

 - on awaking the system/ Firefox, a significant lag/ hang of around 30-40 seconds is experienced
 - this is accompanied by the «beachball», and occasionally, the blue beachball.
 - it seems as though excessive RAM is being consumed, but on checking Activity Monitor, all seems correct.
 - it gets to a stage where the lag/ hang is so bad that other apps refuse to coöperate

- the only work around I have found for the time being is a force quit (which shows that Firefox has become unresponsive - a little like a crash, but caused by no activity).

I wonder if anyone else has the same/ a similar problem. What fixes you use. If it is a known bug. If anyone has managed to rectify the situation.

I'm running Mountain Lion on a 2009 Intel MacBook Pro. Since upgrading to Firefox 18.0.1 a few days ago, my system, at times, becomes unusable: - when active, Firefox is clean, supple and very fluid. - when left idle (background) or minimised to the dock for a short length of time, it becomes unresponsive. - this then has a knock-on effect on my system and renders it unusable: - on awaking the system/ Firefox, a significant lag/ hang of around 30-40 seconds is experienced - this is accompanied by the «beachball», and occasionally, the blue beachball. - it seems as though excessive RAM is being consumed, but on checking Activity Monitor, all seems correct. - it gets to a stage where the lag/ hang is so bad that other apps refuse to coöperate - the only work around I have found for the time being is a force quit (which shows that Firefox has become unresponsive - a little like a crash, but caused by no activity). I wonder if anyone else has the same/ a similar problem. What fixes you use. If it is a known bug. If anyone has managed to rectify the situation.

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I see something similar on Mac OS 10.6. If Firefox is running and I leave the computer idle long enough it to run the screen saver and then go to sleep, quite often Firefox will not respond when I try to do anything with it after the computer wakes up. In fact, quite often the entire computer will be unresponsive.