White flash when opening pages in Firefox 57

[flaneurb]

I posted http://forums.mozillazine.org/viewtopic ... #p14763345 and was pointed by bjherbison to this bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1379587.

In brief, that bug deals with opening new tabs in Private mode. A white flash is seen before the purple background takes over.

I noticed something similar on some pages using the non-Private mode as well because I use a dark style to view web content.

On a chance, I used a solution posted years ago by Bozz: http://forums.mozillazine.org/viewtopic ... #p10416257

Code: Select all

tabbrowser tabpanels {
background-color: #your choice !important;
}

and that still works for Firefox 57. I don't know for how long this workaround will function.

Editing in the hope of getting the Firefox user agent string to show! Hmm... doesn't work

[smsmith]

I'm pretty sure there's a white flash when opening a new tab in a normal window, too. Clicking the new tab button, I see the white flash and then the gray background of about:newtab or whatever it is.

Should've read the bug report, they are already aware that it happens in normal windows.