1749871 - reduce startup blocking to webRequestBlocking listeners

Status: RESOLVED FIXED

(WebExtensions :: Request Handling, defect, P2)

Description

[Shane Caraveo (:mixedpuppy)]

We currently do early addon startup for addons using any webrequest listener. The only use case for early startup should be for addons that need to potentially change requests, which requires blocking listeners.

Comment 1

[Shane Caraveo (:mixedpuppy)]

Attachment: Bug 1749871 make webRequest block startup only for blocking events

Comment 2

[Shane Caraveo (:mixedpuppy)]

dev-doc and release notes:

The use of webRequest used to cause addons to start early during firefox startup. This has changed to only use webRequest blocking calls. non-blocking calls no longer cause an early startup for addons.

Comment 3

[Shane Caraveo (:mixedpuppy)]

Release Note Request (optional, but appreciated)
[Why is this notable]: small change in addon startup behavior
[Affects Firefox for Android]: all platforms
[Suggested wording]: see comment 2
[Links (documentation, blog post, etc)]: there is no current mdn doc on this, it will be added here https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/webRequest

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/d463532c207d
make webRequest block startup only for blocking events r=rpl

Comment 5

[Andreea Pavel [:apavel]]

https://hg.mozilla.org/mozilla-central/rev/d463532c207d

Comment 6

[Pascal Chevrel:pascalc]

Note added to Nighty release notes to the CHANGED section.

Comment 7

[Richard Bloor]

Release notes and additional information on webRequest ready to review in PR Reduce startup blocking to webRequestBlocking listeners #13192