Bugzilla

Thanks for filing! As you said, this reproduces with the following STRs:

1. Download attachment 8779231 [details] and extract it.
1. In Firefox: go to about:debugging
1. Click on "This Nightly"/"This Firefox" > "Load temporary extension"
1. Find the manifest.json for the extension you just extracted  
1. Click Inspect on the "IDB Test" target

ER: Should see indexed db entries in the storage panel
AR: There's only one empty category for the background page

This is a somewhat recent regression, it works with ESR 91.

Thanks for filing! As you said, this reproduces with the following STRs:

1. Download attachment 8779231 [details] and extract it.
1. In Firefox: go to about:debugging
1. Click on "This Nightly"/"This Firefox" > "Load temporary extension"
1. Find the manifest.json for the extension you just extracted  
1. Click Inspect on the "IDB Test" target
1. Select the Storage panel
1. Expand indexed db > moz-extension  > My Database > My Object Store

ER: Should see "moz-extension  > My Database > My Object Store" under indexed DB in the storage panel
AR: There's only one category for the background page ("moz-extension://${uuid}/_generated_background_page.html") and it is empty.

This is a somewhat recent regression, it works with ESR 91.