UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36

Steps to reproduce the problem:
1. Install Adblock Plus or AdBlock 
2. Go to youtube.com and start playing any playlist (there are other ways to reproduce but this seems to be the most reliable so far)
3. Check memory usage of the extension's background page in Chrome's Task Manager
4. Wait for 1h-24-h
5. Check memory usage again
6. Click the browser action icon bringing up the popup
7. Wait a minute after the browser action icon has been closed again
8. Check memory usage again

What is the expected behavior?
The memory usage should remain stable.

What went wrong?
The memory usage keeps growing, in my case it started off at ~120MB and grew to ~160MB in 1h. It seems to continue growing as others report even larger memory usage after 24h [1].

Interestingly, and this indicates that it might be a Chrome bug rather than a memory leak on our end, the memory usage goes back to normal after you open the browser action popup.

I took heap snapshots, and it seems the difference in memory usage, before and after opening the browser action popup corresponds to the retained size of the background page's window object, see the attached screenshot. However, when I expend the object in the profiler, none of the contained objects have any notable size. Furthermore the Statistics view in the profiler indicates that the additional memory usage comes from System objects.

[1]: https://issues.adblockplus.org/ticket/5291

WebStore page: 

Did this work before? N/A 

Chrome version: 58.0.3029.110  Channel: n/a
OS Version: 
Flash Version:
 

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	Screenshot from 2017-06-07 08-15-49.png 253 KB View Download