1628150 - Firefox freezing or slowing down between actions

Status: RESOLVED FIXED

(Core :: Graphics, defect, P3)

Description

[Rafael]

Attachment: Firefox 2020-04-07 20.35 profile.json.gz

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:74.0) Gecko/20100101 Firefox/74.0

Steps to reproduce:

Normal browsing: switching between tabs, interacting with a page, closing a tab.

Actual results:

The browser freezes or slows down massively, sometimes taking over a second to perform an action.
https://perfht.ml/2JO1yKN (same as attached file)

Expected results:

Browsing should have been smooth.

Comment 1

[Rafael]

Seems to work fine on Nightly with a fresh profile, I could not reproduce it there.

Comment 2

[Markus Stange [:mstange]]

Can you attach about:support from the profile that shows this problem?

Comment 3

[Rafael]

Attachment: about:support from the problem profile.

Comment 4

[Rafael]

After updating the graphics driver and Firefox from 74 to 75, I wasn't able to reproduce the bug anymore.
Anyway, sorry for the delay, I have attached the about:support from the profile.

Comment 5

[Benjamin De Kosnik [:bdekoz]]

I'm closing this as resolved, but if this re-surfaces please let Mozilla know?

Comment 6

[Rafael]

I sure will, thanks for the attention!