Red Hat Bugzilla – Bug 804381
paint flashing after updating to firefox 11
Last modified: 2012-03-28 11:41:01 EDT
Description of problem:
After updating to firefox 11, it started to tint everyting in funny colors. I noticed in about:config that nglayout.debug.paint_flashing was set to true. So the cause is apparently this debug feature called paint flashing.
This must have been caused either by
- nglayout.debug.paint_flashing being set to true all the time in my configuration for whatever reason, yet never having an effect. perhaps previous firefox packages before 11.0-1.fc16 were not debug-enabled builds? Is the firefox 11 fedora package supposed to be a debug-enabled build?
- or nglayout.debug.paint_flashing must have been enabled for some reason by the update....
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. yum update
2. start firefox
no paint flashing
setting nglayout.debug.paint_flashing to false fixes the problem
We don't ship debug enabled packages. I don't have option 'nglayout.debug.paint_flashing' present in about:config at all. It may come with some addon you have installed. Try 'firefox -ProfileManager', create new profile and check the mentioned option.
(In reply to comment #1)
> We don't ship debug enabled packages.
But then why can the setting have any effect if the packages are not debug enabled? http://kb.mozillazine.org/About:config_entries describes the effect of this setting as "In debug-enabled builds, flash painted elements/objects when Caps Lock is on" (btw, contrary to this statement, Caps Lock is not required to be on)
> I don't have option
> 'nglayout.debug.paint_flashing' present in about:config at all.
Press the right mouse button in about:config and choose new => boolean to create it with true as its value. Perhaps this is related to mozilla bz https://bugzilla.mozilla.org/show_bug.cgi?id=334411
> It may come
> with some addon you have installed. Try 'firefox -ProfileManager', create new
> profile and check the mentioned option.
As I already described, the setting may have been there for whatever reason before I updated to firefox 11, or it may for some reason have been created by the update. This is a pretty old profile that has seen many versions of Firefox/Seamonkey/Navigator. But the setting never had any effect. I can set it to false or remove it to get rid of the effect; the question is why does it suddenly have some effect after updating to firefox 11.
No idea. You may check mozilla hg repo for latest changes. The page http://kb.mozillazine.org/About:config_entries might be outdated.
for nglayout.debug.paint_flashing usage.
As you referred https://bugzilla.mozilla.org/show_bug.cgi?id=334411 this is most likely the reason, because this change has been introduced in Firefox 11.
Closing as not a bug.