window does not update when I add a tab or switch to another tab
when I add a new tab, the new tab appears but the screen doesn't change. The content under all the tabs is the same. If I type in a url, my current page updates and when I choses another tab, the screen doesn't change. All tabs have the same content.
Выбранное решение
The following extension was causing the problem: DivX Plus Web Player
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Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
- Do not click the Reset button on the Safe mode start window or otherwise make changes.
If it does work in Firefox Safe-mode then disable all extensions (Tools > Add-ons > Extensions) and then try to find which is causing it by enabling one extension at a time until the problem reappears.
Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
Выбранное решение
The following extension was causing the problem: DivX Plus Web Player