Browser.storage.local is not persistent

Add-ons Development
#1

I noticed that every time I launch the browser and load my extension, the storage is somewhat reset, is this due to the fact that I’m debugging it or do I need sort of save the storage after putting in the data?

#2

As long as you are using browser.storage.local.set() to save items to the storage, it should be persistent. If you are loading it as a temporary add-on for debugging, that’s probably why it’s resetting.

#3

Isn’t the temporary add-on scenario the only option for most Android developers?

I haven’t tried it yet, but I’m surprised this is the expected process.

#4

Do you have an id defined in your manifest? If not, every time you load the extension temporarily Firefox will treat it as an entirely new extension.

#5

Yes I defined an Extension ID, but I think it is based on UUID and it seems it is random for temporary extensions, I’m wondering were all those left overs are saved using up disk space.

#6

Firefox should manage storage properly automatically.

I just noticed that https://extensionworkshop.com/documentation/develop/testing-persistent-and-restart-features/ outlines some prefs you can toggle if you want to test storage.local with persistence with an unsigned extension.

#7

Where are you reading this? I read only set an add-on ID using the browser_specific_settings key which I have done.

#8
#9

I have already read this, it say to us an Extension ID, i have this in my manifest file.

#10
  • to preserve storage.local data, access to window.localStorage or indexedDB data when removing a temporary add-on (such as between browser restarts):
    • go to about:config and set both
      extensions.webextensions.keepStorageOnUninstall and
      extensions.webextensions.keepUuidOnUninstall to true .