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Re: [tor-bugs] #19276 [Applications/Tor Browser]: Scrolling is slow and CPU intensive
#19276: Scrolling is slow and CPU intensive
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Reporter: cypherpunks | Owner: tbb-team
Type: defect | Status:
Priority: Medium | needs_information
Component: Applications/Tor Browser | Milestone:
Severity: Normal | Version:
Keywords: tbb-6.0-issues, tbb-usability | Resolution:
Parent ID: | Actual Points:
Reviewer: | Points:
| Sponsor:
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Comment (by cypherpunks):
Replying to [comment:3 gk]:
> I guess this is on a Windows OS? Which version? Do you see error output
or something on the browser console (Ctrl + Shift + J) while scrolling?
Sorry for not mentioning the platform. The issue occurs on a Debian
testing box. There was nothing in the browser console besides unrelated
messages.
I've done some more testing to try and find why there was a difference
between Firefox and TB. Unfortunately the previous comparison wasn't
accurate as the Firefox instance i used was heavily modified. Using a
clean profile made the issue appear with Firefox too so it's not TB
specific.
Turns out issue is solved by setting `gfx.xrender.enabled` to `false`.
Because I'm unfamiliar with the Firefox code base, i don't know what the
preference does, what its impact is, and whether it's worth setting in TB.
Hopefully someone else can figure this out.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19276#comment:4>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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