I run the latest Firefox (v122.0.1) on Windows 11.
Since last week, FF takes 14 minutes to start the first time after a boot. :-(
Usually FF starts in ~3 seconds.
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I run the latest Firefox (v122.0.1) on Windows 11.
Since last week, FF takes 14 minutes to start the first time after a boot. :-(
Usually FF starts in ~3 seconds.
I reboot the laptop.
I wait a minute.
I start FF.
Nothing happens for 14 minutes.
Finally the browser window suddenly appear and everything is working normally.
I exit FF (no remaining firefox.exe processes are running).
I start FF again. Now it starts immediately as usual. :-)
But:
I reboot and start FF. Again, it takes 14 minutes to start.
This is reproduceable every time.
I haven't tried to *solve* this by refreshing FF or simillar.
Right now I'm more interested in debugging this and finding out what is wrong.
I found https://profiler.firefox.com/docs/#/./guide-startup-shutdown which states how to automatically start the profiler at startup.
12:40 I boot the computer, login and wait a minute.
12:43 I start CMD.EXE and run:
cd c:\Program Files\Mozilla Firefox
set MOZ_PROFILER_STARTUP=1
set MOZ_PROFILER_STARTUP_ENTRIES=20000000
set MOZ_PROFILER_STARTUP_INTERVAL=100
12:44 I run:
firefox.exe
No GUI appear. (it won't appear until 14 minutes later)
I open the Task Manager and see one (1) firefox.exe process, taking 0% cpu. (pid 17668)
12:48 One more process running for a few seconds. Commandline is just "c:\Program Files\Mozilla Firefox\firefox.exe", no more options. 0% CPU.
12:50 One more process running for a few seconds. Commandline is just "c:\Program Files\Mozilla Firefox\firefox.exe", no more options. 0% CPU.
12:52 One more process running for a few seconds. Commandline is just "c:\Program Files\Mozilla Firefox\firefox.exe", no more options. 0% CPU.
12:54 One more process running for a few seconds. Commandline is just "c:\Program Files\Mozilla Firefox\firefox.exe", no more options. 0% CPU.
12:56 One more process running for a few seconds. Commandline is just "c:\Program Files\Mozilla Firefox\firefox.exe", no more options. 0% CPU.
12:58 The browser GUI finally appear. Everything is now normal. It is showing one (1) tab with my start-page (google) just as it should.
(my Task Manager now show 12 FF processes running, with various options)
12:59 I click the icon to stop the profiling.
I open the profile.
[Profile Info] says:
Recording started: Sat 17 Feb 2024 12:58
Recording length: 1m12s
So my profiling data don't show what happens between 12:44 to 12:58 :-(
Just for the sake of it, I'm attaching a pic of the first 10 seconds of the profile (at 12:58).
PS: Between 12:44 and 12:58 no FF window exists at all. Alt+Tab show no FF and in Task Manager I can't do any "Window" management, it is greyed out. I.e. no FF window exists for this process.
Question 1)
What should I do to debug what happens between 12:44 and 12:58?
Question 2)
How can it be that it takes 14 minutes to start FF from scratch (boot)
while it starts quickly (~3 seconds) if it has been started once?
I mean, all firefox.exe processes are gone when I exit FF, so starting FF again
should be like starting from scratch, but apparently something is different.
Question 3)
Is it normal that a FF, with only one tab (https://google.com/), run 12 processes in Task Manager?