1700649 - Extensions are broken

Status: RESOLVED DUPLICATE of bug 1700616

(Core :: JavaScript Engine: JIT, defect)

Description

[furkan]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:89.0) Gecko/20100101 Firefox/89.0

Steps to reproduce:

1. Opened Firefox noticed that extensions do not load properly and don't work

(One thing that makes the extension work is to toggle the "Run in Private Windows" option in the extensions settings, which I assume it reloads the extension and makes it work. But when starting Firefox again extensions are broken again like they can't load and lose a race)

Actual results:

The latest Nightly update broke it. Rolled back to yesterdays Nightly and they started to work again.

Interesting thing was I couldn't reproduce it with a clean profile and didn't noticed anyone else who has this issue. I did a mozregression with my profile and here is the pushlog.

https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=177159d72cd3fd7cff403260f2df51524a2cc385&tochange=ab7497109e62f2122bf0ac3babc1b1942727cd2c

Expected results:

The extensions should have worked without issues.

Comment 1

[furkan]

Attachment: My about:support page

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Comment 2

[furkan]

I figured out that https://privacypass.github.io/ this extension can break all other extensions on the latest Nightly. Older Nightly versions works fine.

Comment 3

[furkan]

https://streamable.com/vecycn Here is a video that shows the issue. And how to reproduce it.

Comment 4

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

furkan and I both got the push with bug 1699851 and bug 1697696 as regressor.

Steps to reproduce:

1. Install the Privacy Pass, uBlock Origin and Bitwarden extensions from https://addons.mozilla.org
2. Click their toolbar buttons.

Actual result:
Privacy Pass claims it's in a private Windows, uBlock Origin is empty, Bitwarden looks normal.

Iain, has js behavior been changed?

Comment 5

[Iain Ireland [:iain]]

This is a duplicate of bug 1700616.