1964058 - Github builds started via mach run -P show the Profile Manager window twice

Status: NEW

(Toolkit :: Startup and Profile System, defect)

Description

[Nathan Barrett [:nbarrett]]

When I run my local build with mach run with the -P flag it opens the select a profile popup twice in a row, but then newtab is never able to load (its blank). If i open dev tools or the browser toolbox it usually has this error:
Error: Module resource://devtools/shared/loader/builtin-modules.js is not found at resource://devtools/shared/loader/builtin-modules.js
Otherwise i can navigate to webpages but no about:* pages will load
./mach run without the -P flag works as expected.

Comment 1

[Nathan Barrett [:nbarrett]]

Followup: certain times that I try mach run -P i can access and navigate to about: pages and other times the browser is totally unresponsive

Comment 2

[Jared Hirsch [:jhirsch] (he/him) (Needinfo please)]

On Windows 11, building from the github source code, I've been able to reproduce the double startup with -P, but the about: pages seem fine for me (about:about looks normal, about:addons works, about:config works).

Comment 3

[Jared Hirsch [:jhirsch] (he/him) (Needinfo please)]

Updating the title to emphasize the profiles part of this bug

Comment 4

[Dave Townsend [:mossop]]

I've been unable to reproduce this on Windows or macOS

Comment 5

[Jared Hirsch [:jhirsch] (he/him) (Needinfo please)]

I'm no longer able to reproduce this--how about you, Nathan? Still seeing this in local builds?

Comment 6

[Nathan Barrett [:nbarrett]]

Still seeing this for my local builds. Did you end up doing anything to fix this or was it that way after a pull and build?