Closed Bug 1646950 Opened 5 years ago Closed 5 years ago

Browser freeze at the specific site

Categories

(Firefox :: Untriaged, defect)

Product:
Firefox
Component:
Untriaged
Version:
77 Branch
Type:
defect

Tracking

()

Status:
RESOLVED WORKSFORME

People

(Reporter: Sergey.Krivenkov, Unassigned)

Details

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:77.0) Gecko/20100101 Firefox/77.0

Steps to reproduce:

  1. There are a few open tabs (some of them are pinned in my case)
  2. Open https://www.vesti.ru (very popular News site)
  3. Spend for some time there
  4. Close the tab

Actual results:

Browser is swiched back to previos tab and freezes for 3-5 seconds. It happens every time after living this web-site, but not observed with any other.
Browser restart doesn't help.

Expected results:

Do not freeze

Additional info:

  • there are 8GB RAM and 40-50% is free before the freeze
  • there are 4 CPU cores and Firefox top loading thread consomes 3-5% during the freeze
  • SSD is 50% free

Hi,

It would help us if you can provide a memory report from about:memory, here are the steps for you to get it:

Wait until Firefox is consuming a large amount of memory
In the URL bar type about:memory and press enter
Click ""Measure and save"" (optionally with ""anonymize"" checked to hide URLs, although this will likely make it more difficult for us to figure out which site, if any, is causing the leak)
Save the memory report somewhere
Attach the report to this bug

Also it would help us a lot if you could reproduce this issue on our latest Nightly build, it can be downloaded from here: https://nightly.mozilla.org/
Then capture a performance profile using the Cleopatra add-on. You can get more info on how to install and use the Cleopatra add-on (that helps you get the performance profile) by going to:

https://developer.mozilla.org/en-US/docs/Mozilla/Performance/Profiling_with_the_Built-in_Profiler
https://perf-html.io/
Please also note that this add-on works only on FF Nightly, so that means you need to be able to reproduce the issue on Nightly first.

Thanks.

Flags: needinfo?(Sergey.Krivenkov)

Not reproduced anymore with 78.0.1

Flags: needinfo?(Sergey.Krivenkov)

Hi ,

Thanks for confirming this issue has been solved on your end.

I’ll mark this ticket as resolved. Please feel free to reopen this bug if you have any troubles.

Regards, Clara

Status: UNCONFIRMED → RESOLVED
Closed: 5 years ago
Resolution: --- → WORKSFORME
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