Release 87.0, 64-bit, win 10; does not display font characters or changes to pink
Categories
(Core :: Graphics: Text, defect)
Tracking
()
People
(Reporter: lshiffri, Assigned: bradwerth)
References
Details
Attachments
(8 files)
Firefox87_0_text_bug.png
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0
Steps to reproduce:
Update to current version of Firefox-87.0. Display any web site, such as yahoo.com email. Bring up additional web pages, such as https://sfbay.craigslist.org/d/free-stuff/search/zip.
Actual results:
Text can be displayed in pink. Headers/tabs show no text or characters missing.
Expected results:
Text/fonts should display in color as specified (black). Tab headers should show all text and not drop characters.
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Comment 1•4 years ago
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The Bugbug bot thinks this bug should belong to the 'Core::Layout: Text and Fonts' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.
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Comment 3•4 years ago
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Not Layout, this looks like a Graphics-level issue.
Lisa: If you go to about:config and set the preference gfx.webrender.force-disabled to true and then restart the browser, does that make a difference?
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Comment 5•4 years ago
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How about if you start Firefox in Safe Mode (Help menu / Restart with Add-ons Disabled) -- any difference?
That seems to fix it. I try to run totally clean, so I'm not sure what addin might be doing that. Safe mode removes the menu, which I always have there.
Looks like it might be "Widevine Content Decryption Module provided by Google Inc." With this disabled things are better, though clicking from tab to tab causes the heading to flash off and on. I'm not sure how this plugin got installed. See screen shot.
Characters dropping on tab headers seem to have to do with when they don't have the focus.
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Comment 10•4 years ago
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(In reply to Lisa S from comment #8)
Looks like it might be "Widevine Content Decryption Module provided by Google Inc." With this disabled things are better, though clicking from tab to tab causes the heading to flash off and on. I'm not sure how this plugin got installed. See screen shot.
Widevine add-on is installed when Firefox Preferences -> General has "Play DRM-controlled content" checked. Shouldn't be relevant to this issue. Would you please attach the contents of your "about:support"? Use the "Copy text to clipboard" button and paste that text as an attachment to this bug.
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Comment 11•4 years ago
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Comment 12•4 years ago
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Troubleshooting information attached. Found the DRM setting by searching options. It is checked. Weird thing just happened where it didn't even show the characters when I was typing "about:config". Never had that happen before. After I hit enter they showed.
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Comment 13•4 years ago
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Not fixed at all. Even worse now. Can hardly read email. Lots of pink text. I don't know why it was better yesterday. I don't want to run in safe mode. Where is the previous version so I can uninstall and install the other one?
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Comment 14•4 years ago
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(In reply to Lisa S from comment #13)
Not fixed at all. Even worse now. Can hardly read email. Lots of pink text. I don't know why it was better yesterday. I don't want to run in safe mode. Where is the previous version so I can uninstall and install the other one?
Thanks for the support info dump. That will help us as we try to replicate your experience. In the meanwhile, if your current version of Firefox is unusable because of graphics issues, you have a few options:
- Turn off WebRender by going to about:config and setting these preferences:
gfx.webrender.all false
gfx.webrender.force-disabled true - Go to a newer version of Firefox by trying out the Nightly build at https://www.mozilla.org/en-US/firefox/channel/desktop/.
- Go to an older version of Firefox by trying out an Extended Service Release (ESR) build at https://www.mozilla.org/en-US/firefox/all/#product-desktop-esr.
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Comment 15•4 years ago
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Jeff, can you replicate? Or does anything stand out to you in the about:support log that indicates what might be going on?
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Comment 16•4 years ago
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This seems like it's probably a GPU driver bug. WebRender has been enabled for a while so it seems like this might have been broken recently. Lisa, are you able to narrow down the change that broke this using mozregression?
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Comment 17•4 years ago
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A quick comment. I tried to downgrade to 85.0 but lost my shortcuts (#3 above). But, the problem was gone which should be helpful. I selected my previous profile and it went back to 87.0 even though I had uninstalled and the problem is worse than ever. Yahoo mail is almost unusable now. I have not tried a nightly build. I have not tried mozregression. I want to be sure my shortcuts are backed up before messing with it.
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Comment 18•4 years ago
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Question: I only see info to back up the whole profile. When I restored the profile it changed the version of the installed Firefox. How can I back up and restore only the shortcuts or is this possible. If not possible, will restoring a profile always change the version to the one installed when that profile was created?
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Comment 19•4 years ago
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Changing "gfx.webrender.force-disabled" to true seems to have fixed it. I rebooted instead of restarting since sometimes symptoms change after rebooting.
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Comment 20•4 years ago
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Comment 21•4 years ago
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Glad you have a workable Firefox again. We can't reproduce the bug, but that's likely just an indicator that there's something particular about your hardware and GPU driver. To help us find and fix it, it would be really helpful if you'd be willing to use https://mozilla.github.io/mozregression/ on your machine. That will create a new, clean profile on different versions of Firefox to isolate which code change in FF is causing the problem on your machine. It won't affect your day-to-day profile at all.
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Comment 22•4 years ago
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OK. I'll check it out and let you know the results. See video info screenshot attached.
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Comment 23•4 years ago
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Comment 25•4 years ago
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Probably unrelated, but now my bookmarks toolbar doesn't display any bookmarks and it does not allow adding any. Appears read-only - shows black circle with line when trying to drag something into it. Haven't done mozregression yet.
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Updated•3 years ago
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Comment 26•3 years ago
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Had seemed to improve with versions from the one this is reported again until upgrading to 93.0, 64-bit. The problem is now very severe and some web sites are unreadable.
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Comment 27•3 years ago
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(In reply to Lisa S from comment #26)
Had seemed to improve with versions from the one this is reported against until upgrading to 93.0, 64-bit. The problem is now very severe and some web sites are unreadable.
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Comment 28•3 years ago
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Still not able to reproduce, unfortunately. Please try again with current Nightly which is Firefox 95. If it is still occurring, please follow the process at https://mozilla.github.io/mozregression/ which will help us understand which bit of code is causing the problem, for you.
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Comment 30•3 years ago
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(In reply to Lisa S from comment #29)
Where do I go to get "Nightly"?
https://www.mozilla.org/en-US/firefox/all is one way to find it. From the first dropdown, choose "Firefox Nightly". Nightly is updated every day and best represents the current state of the Firefox code. If something works in Nightly, it means that the fix is on its way to users who run the Release version of Firefox. If the problem is solved for you in Nightly, you can continue to use Nightly until the fix makes its way to Release.
mozregression is the tool to use to determine which code fix is responsible for causing or solving an issue. So if Nightly does not fix the problem for you, it would be very helpful for you to run mozregression to help identify the offending bit of code.
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Comment 31•3 years ago
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Loaded the nightly build. Does not seem to fix all (except got rid of all my shortcuts which is need to get back). One thing I've been playing with is adding new tabs and having all the tab heading text disappear. The icons still show. I pinned this down to the tab text doesn't come back until I take my mouse cursor off the new tab.
- Have a few tabs open (not sure this is needed) - email, bugzilla, CNN
- Click New Tab +
- If text on tab heading is still there click New Tab + again.
- When text disappears, hold mouse over new tab
Result: text does not reappear while mouse is hovering over new tab - Move mouse cursor off tab
Result: text appears on all the tabs
Note that 95.0a1 seems to make the character dropping problem on the web page itself better. Couldn't even read gmail before and now is fine. I haven't put in all the settings I normally run, especially in security. Will try.
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Comment 32•3 years ago
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The front problem has something to do with a graphic and text on the screen at the same time. Attached is a screen video of a NY Times article - scrolling up and down. When the heading is not displayed the text displays correctly. When scrolling so the heading is displayed the text issues can be seen. This is when logged in to NY Times.
https://www.nytimes.com/2021/12/09/world/asia/new-zealand-smoking-ban.html
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Comment 33•3 years ago
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Currently 94.0.1.
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Comment 34•3 years ago
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Lisa, can you try setting the pref "gfx.webrender.software" to true? That will disable the WebRender hardware acceleration somewhat, but if this is really a bug in your video drivers, that should alleviate the symptoms for you until we can figure out what is going on.
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Comment 35•2 years ago
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Lisa S, is this still happening for you?
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Comment 36•2 years ago
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(In reply to Brad Werth [:bradwerth] from comment #35)
Lisa S, is this still happening for you?
I gave up on Firefox. Sooo many problems. I'm using Edge.
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Updated•2 years ago
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Description
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