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Firefox Doesn't Keep Tabs Loaded!

  • 3 回覆
  • 2 有這個問題
  • 650 次檢視
  • 最近回覆由 John

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Hello. Since the last two or three updates, Firefox unloads my tabs automatically. Only the tabs that are opened mainly/principally in other windows (the "front pages" or the highlighted tabs of those windows) will be loaded continuously/permanently. If, let's say, I want to stay logged in on Facebook, I can't if it's opened in a different tab (that's not highlighted) - it will unload automatically as soon as I switch to a different tab (from the same window). This is really frustrating and it does it in Safe Mode too. Thank you for your answers!

Also, since those updates, I had some issues with form auto-filling - saved users and passwords will show on login fields as suggestions, but when I click on them, nothing appears in the fields and they will stay blank. Auto-filling bookmark tags will display the same type of behavior - not working or filling the tag that is firstly suggested from the drop-down list (even if I select the third or the fifth one). This issue diminished since the last update, but it still appears from time to time.


System information & details:

HW: HP 4530s/Intel Core i3-2330M @ 2,20 Ghz & 8 GB of RAM memory;

SW: Windows 10 Pro, version 1803/64-bit; latest version of Firefox.

Hello. Since the last two or three updates, Firefox unloads my tabs automatically. Only the tabs that are opened mainly/principally in other windows (the "front pages" or the highlighted tabs of those windows) will be loaded continuously/permanently. If, let's say, I want to stay logged in on Facebook, I can't if it's opened in a different tab (that's not highlighted) - it will unload automatically as soon as I switch to a different tab (from the same window). This is really frustrating and it does it in Safe Mode too. Thank you for your answers! Also, since those updates, I had some issues with form auto-filling - saved users and passwords will show on login fields as suggestions, but when I click on them, nothing appears in the fields and they will stay blank. Auto-filling bookmark tags will display the same type of behavior - not working or filling the tag that is firstly suggested from the drop-down list (even if I select the third or the fifth one). This issue diminished since the last update, but it still appears from time to time. System information & details: HW: HP 4530s/Intel Core i3-2330M @ 2,20 Ghz & 8 GB of RAM memory; SW: Windows 10 Pro, version 1803/64-bit; latest version of Firefox.

由 Hana_Samir 於 修改

被選擇的解決方法

Firefox will detect if your computer’s memory is running low, which is defined as lower than 400MB, and suspend unused tabs that you haven’t used or looked at in a while. The new tab unload feature is controlled on the about:config page with a preference that you can set to false to disable this feature.

  • browser.tabs.unloadOnLowMemory = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.


從原來的回覆中察看解決方案 👍 0

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選擇的解決方法

Firefox will detect if your computer’s memory is running low, which is defined as lower than 400MB, and suspend unused tabs that you haven’t used or looked at in a while. The new tab unload feature is controlled on the about:config page with a preference that you can set to false to disable this feature.

  • browser.tabs.unloadOnLowMemory = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.


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It solved my issue, thank you! I had some memory leakage from another program that was taking about 5 GB of RAM; Firefox got "suffocated" and didn't have any space left to run properly. It also crashed from time to time because of that, while being idle.

My issue with form auto-filling is not solved however. I will create a different post for that.

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I installed Firefox 68.1.1 for Android. In this version, the mentioned config option (browser.tabs.unloadOnLowMemory) seems not to exist. Does it have another name in this version? Or how can I disable automatic unloading in this version?