User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0

Steps to reproduce:

1. Firt hang - using Google Maps Streetview.
2. Second Hang - while YouTube notifications open & reading a comment.

It didn't hang at all yesterday ! Then suddenly twice today within 15 minutes.

Soln: Restarted FF.

Actual results:

FF Stops responding, 2 of the 4 CPUs go to 12-14% usage while the other 2 remain at minimum. CPU fan speeds up 2-3 steps.

Memory: Ample. (<50% (~40%))

Other apps running:
Clipbook viewer
Volume mixer
MS Explorer (Was: file mangler)

OS: Win 7

Expected results:

FF should not have hung - like it didn't used to a month and a half ago.

The Bugbug bot thinks this bug should belong to the 'Core::Graphics' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

(Ammendment to comment #0)

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0

Steps to reproduce:

1. First hang - using Google Maps Streetview.
2. Second Hang - while YouTube notifications open & reading a comment.

3. Third reported hang - <b><u>computer not attended</u></b>. Several open tabs. Current tab: a new tab, unused. After approx 30 minutes, FF hung.

It didn't hang at all yesterday ! Then suddenly twice today within 15 minutes.

Soln: Restarted FF.

Actual results:

FF Stops responding, 2 of the 4 CPUs go to 12-14% usage while the other 2 remain at minimum. CPU fan speeds up 2-3 steps.

Memory: Ample. (<50% (~40%))

Other apps running:
Clipbook viewer
Volume mixer
MS Explorer (Was: file mangler)

OS: Win 7

Expected results:

FF should not have hung - like it didn't used to a month and a half ago.

Windows 7 is no longer supported and the reporter is not contactable.