2053883 - IPPAlwaysOn synchronous proxy restart loop freezes browser on live policy change

Status: VERIFIED FIXED

(Enterprise Products :: Firefox, defect)

Description

[Josh Porter [:jporter]]

Bug 2049327 (live policy update rework) changed the policy engine to run onRemove and re-apply a policy on live parameter changes. For AccessConnector this tears down and restarts the proxy, triggering the freeze on any live policy change.

Steps to reproduce:

1. Apply the AccessConnector enterprise policy.
2. Change a policy parameter live (e.g. Host, Port, or MatchPatterns).
3. Observe the browser freeze.

Comment 1

[Josh Porter [:jporter]]

Attachment: Bug 2053883 - Defer and back off IPPAlwaysOn proxy restarts r=sstreich

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/4868e96d5a45
https://hg.mozilla.org/integration/autoland/rev/8a31a9af6dff
Defer and back off IPPAlwaysOn proxy restarts r=sstreich

Comment 3

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/8a31a9af6dff

Comment 4

[Miruna Curtean]

Verified fixed on 155.0a1 (Build ID:20260807123753) on Windows 11 and macOS 26.4.
The policy has been modified on a instance of the admin console open in the FxE browser and the policy was applied live and no browser freeze occurred.