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The Firefox window, at times turn completely blank.

Firefox 疑難排解
cor-el replied
Wayne Carpenter
Wayne Carpenter

The Firefox window, at times turn completely blank. After maybe 15 seconds or so, it is restored. but all of the webpages on all of the tabs have to be refreshed in order to be displayed except for the tab I'm currently actually on. So it appears that Firefox is crashing and restarting.

The Firefox window, at times turn completely blank. After maybe 15 seconds or so, it is restored. but all of the webpages on all of the tabs have to be refreshed in order to be displayed except for the tab I'm currently actually on. So it appears that Firefox is crashing and restarting.

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Wesley Branton
Wesley Branton

Starting in Firefox 67, Firefox may unload background tabs if your computer is running low on memory. This will boost the performance of your active tab and your computer as a whole.

If you want to disable this feature, you can use the Configuration Editor for Firefox (about:config) to set the browser.tabs.unloadOnLowMemory preference to false.

Hope this helps.

NOTE: You may need to restart Firefox to fully apply the change.
Wayne Carpenter
Wayne Carpenter 提出問題者

The issue has nothing to do with unloading tabs.

cor-el
cor-el
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Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window