STR: - Open https://addons.mozilla.org/en-US/firefox/themes/ and hover your cursor over a few themes Expected Results: - Each theme is previewed correctly Actual Results: - Some themes are previewed correctly, but at some point when hovering a theme the tab content becomes entirely blank, and nothing brings it back. It's still possible to interact with it, click on links etc, but the content is invisible. I can reproduce this on a fresh profile on Firefox 55 (Nightly 20170328110211) on Linux. I can *not* reproduce on 52.0.1 release on the same system. This has been confirmed by at least 2 other users using Linux in https://github.com/mozilla/addons-server/issues/5019 and https://github.com/webcompat/web-bugs/issues/5268 ; I asked on IRC and at least one person could not reproduce on Windows.
ni? some people that might be able to help (thanks, padenot)
Can you find a regression window with https://mozilla.github.io/mozregression/ ?
Component: Theme → Untriaged
Firefox::Theme is generally for bugs in the themes we ship. I don't think that's at fault here. Maybe the toolkit lightweighttheme code is broken, but I actually suspect this will end up being a graphics bug. A screenshot would also be helpful.
Created attachment 8852052 [details] tab-disappearing.webm I don't see anything in my browser or web console, but the terminal I started nightly from shows: IPDL protocol error: Handler returned error code! ###!!! [Parent][DispatchAsyncMessage] Error: PLayerTransaction::Msg_ReleaseLayer Processing error: message was deserialized, but the handler returned false (indicating failure) Attached is a video showing the issue. Note that all existing tabs are affected as well. I'll try to figure out a regression range.
Mozregression results: 8:11.41 INFO: Last good revision: e91de6fb2b3dce9c932428265b0fdb630ea470d7 8:11.41 INFO: First bad revision: 180a160ae22a4d63867cfd02608e7621e8e697d1 8:11.41 INFO: Pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=e91de6fb2b3dce9c932428265b0fdb630ea470d7&tochange=180a160ae22a4d63867cfd02608e7621e8e697d1
This is a dupe of bug 1344839. I'll update the summary of that bug so it has better keywords :)
Status: NEW → RESOLVED
Last Resolved: a year ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1344839
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