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Every time I relaunch Firefox all of my extension data disappears

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Whenever I quit and re-open all of my extension settings (adblock filters, userscripts, etc.) have reset. I've tried restoring my profile from backups and manually changing extension settings, but it all disappears again when I relaunch Firefox. This has only started happening since yesterday when I updated to the latest version (66.0.2, from 65.0.1).

Update: I have tried "refreshing" Firefox and reinstalling extensions and am still having the same problem.

Update 2: I have just uninstalled and removed all trace of Firefox from my system, then re-downloaded, and this is still happening.

Update 3: I have now downgraded to 65.0.2 and am no longer having this problem ¯\_(ツ)_/¯

Whenever I quit and re-open all of my extension settings (adblock filters, userscripts, etc.) have reset. I've tried restoring my profile from backups and manually changing extension settings, but it all disappears again when I relaunch Firefox. This has only started happening since yesterday when I updated to the latest version (66.0.2, from 65.0.1). Update: I have tried "refreshing" Firefox and reinstalling extensions and am still having the same problem. Update 2: I have just uninstalled and removed all trace of Firefox from my system, then re-downloaded, and this is still happening. Update 3: I have now downgraded to 65.0.2 and am no longer having this problem ¯\_(ツ)_/¯

Modified by runcibularity

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 28.0 r0

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:66.0) Gecko/20100101 Firefox/66.0

More Information

cor-el
  • Top 10 Contributor
  • Moderator
17416 solutions 157344 answers

current Firefox releases store extension data in IndexedDB in the storage folder (storage/default) in the profile folder. If you lose this data then there might be a problem with local storage. This can also be a problem with the prefs.js file because the GUID of an extension is stored in the "extensions.webextensions.uuids" pref to make it possible to link an extension via its GUID to data stored in the storage folder. There are also extensions.webextensions.ExtensionStorageIDB prefs that store whether data from the old storage has been migrated to the new storage, so any problem with prefs.js can lead to dataloss.

current Firefox releases store extension data in IndexedDB in the storage folder (storage/default) in the profile folder. If you lose this data then there might be a problem with local storage. This can also be a problem with the prefs.js file because the GUID of an extension is stored in the "extensions.webextensions.uuids" pref to make it possible to link an extension via its GUID to data stored in the storage folder. There are also extensions.webextensions.ExtensionStorageIDB prefs that store whether data from the old storage has been migrated to the new storage, so any problem with prefs.js can lead to dataloss.
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FredMcD
  • Top 10 Contributor
4224 solutions 58972 answers

Separate Security Issue: Update your Flash Player or remove it using these links; Uninstall Flash Player | Windows {web link} Uninstall Flash Player | Mac {web link}

Note: Windows users should download the ActiveX for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX.

Flash Player Version 32.0.0.156

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

'''Separate Security Issue:''' Update your Flash Player or remove it using these links; [http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html Uninstall Flash Player | Windows] {web link} [http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html Uninstall Flash Player | Mac] {web link} '''Note: Windows users''' should download the '''ActiveX''' for ''Internet Explorer.'' '''and''' the '''plugin''' for ''Plugin-based browsers'' (like Firefox). '''Note: Windows 8 and Windows 10''' have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX. Flash Player '''Version 32.0.0.156 ''' https://get.adobe.com/flashplayer/ Direct link scans current system and browser '''Note: Other software''' is offered in the download. <Windows Only> https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) '''Note: Other software''' is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration
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FredMcD
  • Top 10 Contributor
4224 solutions 58972 answers

https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Note: Some software, like Advanced SystemCare with Surfing Protection, can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.

https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save '''Note:''' Some software, '''like''' Advanced SystemCare with Surfing Protection, can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.
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