Open Bug 1433879 Opened 7 years ago Updated 2 years ago

WebExtensions' tab listener handler appears to be too slow (bad performance)

Categories

(WebExtensions :: General, enhancement, P3)

Product:
WebExtensions
Component:
General
Type:
enhancement

Tracking

(Not tracked)

People

(Reporter: standard8, Unassigned)

References

(Blocks 1 open bug)

Details

As seen in bug 1415467 comment 12 and onwards, using a tab update listener appears to be quite expensive and causes regressions in "tp5o responsiveness opt e10s" on Talos (as best as I can tell). This needs investigating & fixing on the WebExtensions side, or an alternative implementation where we can get just the data we need. Separating this out from bug 1415467 so that it can be tracked separately as it is currently blocking us from moving part of that system add-on to a WebExtension. This is highly likely to affect Firefox uses using WebExtensions that use this API as well.
Blocks: webext-oop
Priority: -- → P3
Product: Toolkit → WebExtensions

Has this been fixed?

Severity: normal → S3
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