Memory leak when opening about:preferences
Categories
(Firefox :: Settings UI, defect)
Tracking
()
People
(Reporter: Tobias.Marty, Unassigned)
Details
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0
Steps to reproduce:
Updated Firefox to 68 Beta 3 (with German language pack). Opened about:preferences.
Actual results:
Massive memory leak which makes the browser unresponsive until killing it with Windows task manager.
It works in safe mode. Only two addons active are Firefox Pioneer and uBlock Origin. Disabling uBlock Origin in normal mode still causes memory leak.
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Updated•6 years ago
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Comment 1•6 years ago
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As the memory begins to reach its limits, would you be able to go to about:memory, and click "Measure and save" to save a memory report, and then post it in this bug? That might help us track down what's eating your memory here.
It stays at about 3 GB memory used with a total of 8 GB system RAM. CPU usage is very high, but I tried to save a report. Here's a link: https://1drv.ms/u/s!ArY6nA0dfc6ug5JKFT0CvNHgeHyXWQ
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Comment 3•6 years ago
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Wow, 4.5GB in heap-unclassified there.
Hey mccr8, in bug 1436220, erahm gave some pretty detailed instructions on how to get a DMD build running and emitting useful information on Linux-y machines. Do you know if there are similar instructions for Windows users?
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Comment 4•6 years ago
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Probably not written up so nicely. https://developer.mozilla.org/en-US/docs/Mozilla/Performance/DMD has some information scattered around.
I found the cause. After using an English installer to manually update Firefox I downloaded a German language pack with the according menu options. After using a German installer and removing the German language pack and dictionary with about:addons the memory leak is gone.
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Comment 6•4 years ago
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Description
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