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I'm running ICS 4.0.3, and I notice if I have the Web app (default browser) open, but not in the foreground, it still uses a lot of CPU (25-50%), based upon the built-in Android Task Manager. Other apps are using 0%. Looking at my battery usage, the Web uses about 33%, even when my phone is inactive.

Is there any way I can prevent the Web app from using so much CPU when it is not in the foreground, without using the back button to exit?

I'm running on a Samsung Galaxy S2.

Edit: If the best answer is to use a different browser, I am open to that suggestion.

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Long press the Home key, to bring up the task manager and swipe it to the right, now at this point, am not sure if its to the left either... :D – t0mm13b Aug 13 '12 at 15:19
As I remember, it was swiping either side, that removes it from the task manager list, and also, for killing the task.. hence my poor brain performance in recalling which is it... :) – t0mm13b Aug 13 '12 at 15:21
Change to Chrome, perhaps? – Al E. Aug 13 '12 at 15:37
up vote 1 down vote accepted

I have reason to believe that this may be a bug caused when the Web app has a large number of bookmarks. In System Settings -> Accounts and sync I turned off Sync Web under my Google account. Then I went to Manage Apps, clicked the All tab, and hit the Clear Data button.

This reduced the usage of the Web app to 1% when in the background.

When I enabled Sync Web to import all my Chrome bookmarks, then disabled it, the problem showed itself again. I reproduced this problem twice.

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That's interesting. How many bookmarks do you have? – Richard Borcsik Aug 14 '12 at 19:16
@RichardBorcsik, I'm going to guess over 800. My bookmarks were imported from desktop Chrome, which were imported from Firefox. I just looked at my Firefox bookmarks, and I had 891. I have a habit of bookmarking articles that I will never read again. – Chance Aug 14 '12 at 19:50
I have ~300 here without issues. If this turnes out to be the problem I suggest you move stuff that you'll never read to this way only the app that you never uses to never read the articles will be slow :) (that's how I do it.) – Richard Borcsik Aug 14 '12 at 20:33

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