Open Bug 1555377 Opened 6 months ago Updated 6 months ago

The browser toolbox takes a long time to start


(DevTools :: General, defect, P2)



(Not tracked)


(Reporter: florian, Unassigned)


(Blocks 1 open bug)



(1 file)

Here is a profile of starting the browser toolbox on a local mac build:

I see a few things taking a significant amount of time that don't seem relevant to the browser toolbox:

  • starting the add-on manager
  • starting telemetry
  • (OS X specific) creating the Firefox hidden window, which loads most of the scripts of a normal browser window.

The patch I added here is a quick hack, so not sure if it's really ready for review, but feedback is welcome. Here is a profile with the patch applied:

Priority: -- → P2
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