[resolved] Firefox Troubleshoot Mode broken

aocab · 2022-07-19 23:02:30

Firefox 102.0.1 (Arch and Slackware 15)

Normal mode working fine no major complaints. However, Troubleshoot Mode is broken.

Arch:
Browser goes to restart in safe mode. The window opens but no pages will load (local or remote). It looks like it is going through the motion (circular animation) but nothing ever loads. I have to get out of Troubleshoot Mode for pages to start loading.

Slackware:
Browser goes to restart in safe mode but nothing else happens. No window opens. KSysGuard shows Firefox running with memory usage blank. I have to end process from KSysGuard.

Using DNS over HTTPS ADGuard and Don’t enable HTTPS-Only Mode

Arch:
I tried using a new profile, refreshing Firefox, uninstalling and re-installing Firefox but the issue still occurs.

In Firefox I do log in to my account and sync in both Slackware and Arch.

Any thoughts? I can't seem to figure out why Troubleshoot Mode is not working. It was working. I just noticed it was not working anymore yesterday.

Tried downgrading Firefox to 101.0.1 and starting with a new profile but Troubleshoot Mode still did not work.

I'm not seeing any error messages in dmesg and I'm out of ideas.

Thanks

Last edited by aocab (2022-10-25 22:49:27)

aocab · 2022-07-23 14:03:32

Tried switching between hardware/software acceleration.
i.e. WebRender and WebRender (software).

Tried switching Firefox's Gtk+ backend.
i.e. X11 and Wayland

Tried switching Firefox's OpenGL backend.
i.e. GLX and EGL

Issue remains :-(

Last edited by aocab (2022-07-23 16:17:19)

seth · 2022-07-23 14:51:53

Can you open https://216.58.215.78 ?
Edit: that's a google IP

Last edited by seth (2022-07-23 14:52:09)

aocab · 2022-07-23 15:59:02

Here are the results in both regular and safe mode

https://imgur.com/tsU6wrP

If I Accept the Risk in regular mode I arrive at www.google.com.
In Troubleshoot mode the page never loads

Last edited by aocab (2022-07-23 16:15:13)

aocab · 2022-07-23 16:03:15

Also tried downloading the latest Firefox version from their website.
Launched the app like so:

MOZ_ENABLE_WAYLAND=0 ./firefox -ProfileManager -no-remote

Used a new profile. And the issue still exists

aocab · 2022-07-23 16:20:08

It's just weird that Normal Mode works and Troubleshoot Mode doesn't.
And it happens in both Firefox in Arch and Firefox in Slackware.

I'm thinking it must be something unique to my system setup.
But wouldn't using a new profile in a fresh re-install of Firefox fix that?

Frustrating...

seth · 2022-07-23 19:12:53

Is firefox from the repos or a flatpak?
The "potential security risk" ahead looks like a certificate issue, but the firefox package should™ draw all required certificate packages.

xerxes_ · 2022-07-23 21:03:12

But the most important question is: why do you need troubleshoot mode when normal mode works? What is the purpose?

Last edited by xerxes_ (2022-07-23 21:03:35)

aocab · 2022-07-23 23:55:46

xerxes_ wrote:

But the most important question is: why do you need troubleshoot mode when normal mode works? What is the purpose?

To troubleshoot. How am I supposed to troubleshoot if Troubleshoot Mode is not working?

Right now I don't really need it because Normal Mode is working. But if anything happens I can't use it to troubleshoot.

And the fact that it's not working indicates that something is wrong.

Lone_Wolf · 2022-07-24 12:50:33

Running firefox from repos in normal mode.
Settings > Privacy and SEcuirty > Certificates > Query OCSP responder servers to confirm the current validity of certificates is enabled .

216.58.215.78 uses an invalid security certificate.
 
The certificate is not trusted because it is self-signed.
 
Error code: MOZILLA_PKIX_ERROR_SELF_SIGNED_CERT

I do think that setting is off by default.

Last edited by Lone_Wolf (2022-07-24 12:51:41)

aocab · 2022-07-24 15:41:19

Lone_Wolf wrote:

Running firefox from repos in normal mode.
Settings > Privacy and SEcuirty > Certificates > Query OCSP responder servers to confirm the current validity of certificates is enabled .

The setting was turned on.

aocab · 2022-07-24 15:42:29

I also tried creating a new account. Same issue with Firefox. Troubleshoot Mode broken.

seth · 2022-07-24 19:35:30

Lone_Wolf was pointing out that the certificate warning for https://216.58.215.78 is a red herring and "normal" (with firefox)
However since the behavior is the same when accessing an IP it's (probably) not AdGuard (can you still try to disable that, though? Just to be sure)

Does the web inspector (hopefully ctrl+shift+i) list any traffic when reloading the failing page?

Lone_Wolf · 2022-07-25 09:01:10

For clarity : The self-signed certificate error appears in both normal and troubleshoot mode on my firefox install .

I do have DoH disabled as I very much prefer network layer solutions like DoT & DNSSEC (both enabled in my router settings )

Last edited by Lone_Wolf (2022-07-25 09:02:13)

aocab · 2022-07-25 19:04:46

seth wrote:

Is firefox from the repos or a flatpak?

It's the package that came with the distro (Arch and Slackware 15)

seth wrote:

Lone_Wolf was pointing out that the certificate warning for https://216.58.215.78 is a red herring and "normal" (with firefox)
However since the behavior is the same when accessing an IP it's (probably) not AdGuard (can you still try to disable that, though? Just to be sure)
Does the web inspector (hopefully ctrl+shift+i) list any traffic when reloading the failing page?

I disabled adguard, turned off DoH, and tried loading troubleshoot mode.
Still the same issue with pages not loading.
ctrl-shift-i opens but it too is blank.

aocab · 2022-07-25 19:08:54

You know what's really weird?

I was not paying attention when I wrote a reply and it turns out
that the reply above this one was input while in troubleshoot mode.

Yet other tabs (freshly opened) load nothing.

I swear, ghosts in the machine.

aocab · 2022-07-25 19:11:49

Currently in troubleshoot mode (page was open before entering troubleshoot mode) and
I can reply for some reason while new tabs open nothing except the stupid annoying circle animation.

Even the new tab page is blank instead of the stuff that is usually there.

I have to kill Firefox after exiting troubleshoot because it does not exit all the way.

Last edited by aocab (2022-07-25 19:16:22)

seth · 2022-07-25 20:33:51

Do any of these pages open in the "troubleshoot mode"?
https://example.com/
https://blog.fefe.de/
(no javascript)

Can you open local files, eg. file:///etc/passwd ?

Though I guess since you opened bbs.archlinux.org before running the troubleshoot mode, it ran in a non-troubleshooting process.

aocab · 2022-07-26 13:37:19

seth wrote:

Do any of these pages open in the "troubleshoot mode"?
https://example.com/
https://blog.fefe.de/
(no javascript)
Can you open local files, eg. file:///etc/passwd ?
Though I guess since you opened bbs.archlinux.org before running the troubleshoot mode, it ran in a non-troubleshooting process.

I had this page open before I went into troubleshoot mode.
Went into troubleshoot mode
Was able to then log into this site

Regarding those links:
https://example.com does not load
https://blog.fefe.de does load (FeFe's Blog in a language I do not understand. German?)
file:///etc/passwd does not load

Do those results hint at a reason for the issue?

I had to end process from ksysguard to get out of troubleshoot mode.

Items listed that were removed when I ended firefox include:
a privileged item, a couple of isolated items, several web items, and one socket item.

Last edited by aocab (2022-07-26 13:44:51)

seth · 2022-07-26 14:56:22

https://blog.fefe.de does load (FeFe's Blog in a language I do not understand. German?)

Are you absolutely sure that this isn't a false positive and you opened it in a "non-troubleshooting" process?

Neither url uses javascript, but fefe also uses no CSS, though I'm not sure why file:///etc/passwd would be affected (except if FF uses CSS to display local files)
Can you open https://ping.archlinux.org/ in the troubleshooting mode?

FTR:
fefe ( https://en.wikipedia.org/wiki/Felix_von_Leitner )
31.15.64.162 / hosting.de / R3, Let's Encrypt - 29. Juni 2022 um 10:40:41 - 27. September 2022 um 10:40:40
example:
93.184.216.34 / verizon / DigiCert TLS RSA SHA256 2020 CA1, DigiCert Inc, 14. März 2022 um 01:00:00 - 15. März 2023 um 00:59:59

aocab · 2022-07-26 19:43:36

seth wrote:

Are you absolutely sure that this isn't a false positive and you opened it in a "non-troubleshooting" process?
Neither url uses javascript, but fefe also uses no CSS, though I'm not sure why file:///etc/passwd would be affected (except if FF uses CSS to display local files)
Can you open https://ping.archlinux.org/ in the troubleshooting mode?

I had this page open before entering troubleshoot mode.
Restarted in troubleshoot mode.
Logged into this site.
Then opened each link and took a picture to show troubleshoot mode ON.

https://imgur.com/a/ng9EGre

https://imgur.com/a/fVqcY1A

seth · 2022-07-26 19:55:28

Smells like CSS indeed - I can't really explain "why" but from https://imgur.com/a/fVqcY1A it looks a bit like you're using a "dark mode" theme for firefox (or maybe it's inherited from KDE)?
What if you switch to a "black on white" theme?

aocab · 2022-07-26 20:03:26

seth wrote:

Smells like CSS indeed - I can't really explain "why" but from https://imgur.com/a/fVqcY1A it looks a bit like you're using a "dark mode" theme for firefox (or maybe it's inherited from KDE)?
What if you switch to a "black on white" theme?

It is Mozilla's System theme - auto
I switched to it the other day just to check.

https://imgur.com/a/74xOlLM

seth · 2022-07-26 20:29:46

Did you previously use a black on white theme?
(The idea being that otherwise actually everything is there, you just can't see it - maybe try to just select text on a "failing" tab? Copy & Paste it?)

aocab · 2022-07-26 20:41:44

seth wrote:

Did you previously use a black on white theme?
(The idea being that otherwise actually everything is there, you just can't see it - maybe try to just select text on a "failing" tab? Copy & Paste it?)

Unfortunately, failing pages never load anything other than the circle animation.
And nothing shows in the browser console.

Hell, I even tried:

strace -yy firefox --safe-mode >strace-firefox-safemode 2>&1

To see if anything in the trace would gave me any ideas on what to check.

Saw some messages related to the theme (Jolly-GTK) which is why I tried going back to a default theme.

read(9</home/alpha/.themes/Jolly-GTK/gtk-3.0/gtk.css>, "l),\n    entry.error:focus {\n    "..., 8192) = 8192

Still no luck.
Thank you for helping me though. I appreciate it.

This is driving me nuts. I was hoping to learn something in my search of a fix.

Arch Linux

#1 2022-07-19 23:02:30

[resolved] Firefox Troubleshoot Mode broken

#2 2022-07-23 14:03:32

Re: [resolved] Firefox Troubleshoot Mode broken

#3 2022-07-23 14:51:53

Re: [resolved] Firefox Troubleshoot Mode broken

#4 2022-07-23 15:59:02

Re: [resolved] Firefox Troubleshoot Mode broken

#5 2022-07-23 16:03:15

Re: [resolved] Firefox Troubleshoot Mode broken

#6 2022-07-23 16:20:08

Re: [resolved] Firefox Troubleshoot Mode broken

#7 2022-07-23 19:12:53

Re: [resolved] Firefox Troubleshoot Mode broken

#8 2022-07-23 21:03:12

Re: [resolved] Firefox Troubleshoot Mode broken

#9 2022-07-23 23:55:46

Re: [resolved] Firefox Troubleshoot Mode broken

#10 2022-07-24 12:50:33

Re: [resolved] Firefox Troubleshoot Mode broken

#11 2022-07-24 15:41:19

Re: [resolved] Firefox Troubleshoot Mode broken

#12 2022-07-24 15:42:29

Re: [resolved] Firefox Troubleshoot Mode broken

#13 2022-07-24 19:35:30

Re: [resolved] Firefox Troubleshoot Mode broken

#14 2022-07-25 09:01:10

Re: [resolved] Firefox Troubleshoot Mode broken

#15 2022-07-25 19:04:46

Re: [resolved] Firefox Troubleshoot Mode broken

#16 2022-07-25 19:08:54

Re: [resolved] Firefox Troubleshoot Mode broken

#17 2022-07-25 19:11:49

Re: [resolved] Firefox Troubleshoot Mode broken

#18 2022-07-25 20:33:51

Re: [resolved] Firefox Troubleshoot Mode broken

#19 2022-07-26 13:37:19

Re: [resolved] Firefox Troubleshoot Mode broken

#20 2022-07-26 14:56:22

Re: [resolved] Firefox Troubleshoot Mode broken

#21 2022-07-26 19:43:36

Re: [resolved] Firefox Troubleshoot Mode broken

#22 2022-07-26 19:55:28

Re: [resolved] Firefox Troubleshoot Mode broken

#23 2022-07-26 20:03:26

Re: [resolved] Firefox Troubleshoot Mode broken

#24 2022-07-26 20:29:46

Re: [resolved] Firefox Troubleshoot Mode broken

#25 2022-07-26 20:41:44

Re: [resolved] Firefox Troubleshoot Mode broken

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