No, bug appeared many days before that. No editing that time for sure.
UPD:
Initial change (by which I mean <dir prefix="relative">fonts</dir>
) could be introduced way earlier when I used it to bypass issue #40694 (closed) to get partially readable browser text.
From that time it stayed until update 11.5 became unusable with that change.
Maybe file wasn't updating because it was modified manually many months earlier.
Today's edit was minor and I reverted it, but timestamp was changed.
Edited it few hours earlier, now only creation time left. 2021-11-16
As it turns out, somehow Browser/TorBrowser/Data/fontconfig/fonts.conf was not updating along with other files. Replacing it in failed TBB's directory solved the problem.
diff failed/Browser/TorBrowser/Data/fontconfig/fonts.conf 11.5.1/Browser/TorBrowser/Data/fontconfig/fonts.conf
37,38c37,38
< <!-- <dir>fonts</dir> -->
< <dir prefix="relative">fonts</dir>
---
> <dir>fonts</dir>
>
This is some weird bug. Accessing file open dialog only makes tor browser inaccessible giving Gdk warning. File save dialog crashes display manager.
I installed KDE and Xorg crashed too. However KDE with Wayland was able to render those windows. They are rendered huge with no usable elements in them. File open dialog has 1710694 pixels height. Resizing it gives no usable elements in window.
Downloading fresh 11.5.1 tarball and unpacking to a different location gave me usable tor browser, no bugs.
I guess it is not a bug in TBB, but maybe something went wrong during an update. Can you give an advice where to look for reasons of this behavior?
Starting with recent versions 11.5 and 11.5.1 it is impossible to access file save or file open dialog in TBB on fedora 36 LXQt because openbox crashes at that moment.
STDERR
(Tor Browser:3514): Gdk-WARNING **: 12:33:03.167: Native Windows wider or taller than 32767 pixels are not supported
(Tor Browser:3514): Gdk-WARNING **: 12:33:03.168: Native Windows wider or taller than 32767 pixels are not supported
(Tor Browser:3514): Gtk-WARNING **: 12:33:03.216: infinite surface size not supported
(Tor Browser:3514): Gtk-WARNING **: 12:33:03.216: infinite surface size not supported
Journalctl output:
Process 2233 (openbox) of user 1000 dumped core.
Module linux-vdso.so.1 with build-id e677a5a72afa1b766a44e2eca24b15b30d8211e1
Module ISO8859-1.so with build-id 144ebbc06923de9f591b1df73baeb018c58722bc
Module libgcc_s.so.1 with build-id 1e82df1fa0e0de4d8382b75c0fa730e0672f1a47
Module libnss_systemd.so.2 with build-id 3f0865540ea4717fd0caf10c604d3543343a8588
Metadata for module libnss_systemd.so.2 owned by FDO found: {
"type" : "rpm",
"name" : "systemd",
"version" : "250.8-1.fc36",
"architecture" : "x86_64",
"osCpe" : "cpe:/o:fedoraproject:fedora:36"
}
Module libnss_sss.so.2 with build-id ceded8951b6a8d21ac432aa830dbbb27de007669
Metadata for module libnss_sss.so.2 owned by FDO found: {
"type" : "rpm",
"name" : "sssd",
"version" : "2.7.3-1.fc36",
"architecture" : "x86_64",
"osCpe" : "cpe:/o:fedoraproject:fedora:36"
}
Module libpcre2-8.so.0 with build-id 0d207ce0c9db9ba59d4a8264b95c5ebf3ddec190
Metadata for module libpcre2-8.so.0 owned by FDO found: {
"type" : "rpm",
"name" : "pcre2",
"version" : "10.40-1.fc36",
"architecture" : "x86_64",
"osCpe" : "cpe:/o:fedoraproject:fedora:36"
}
Module libblkid.so.1 with build-id 487c9b8a063b3a42a29163f14e8d92637d8b6116
Metadata for module libblkid.so.1 owned by FDO found: {
"type" : "rpm",
"name" : "util-linux",
"version" : "2.38-1.fc36",
"architecture" : "x86_64",
"osCpe" : "cpe:/o:fedoraproject:fedora:36"
}
Module libbrotlicommon.so.1 with build-id e2790c03a5c688b7e75e89676cdd2b5fcf247a6f
Metadata for module libbrotlicommon.so.1 owned by FDO found: {
"type" : "rpm",
"name" : "brotli",
"version" : "1.0.9-7.fc36",
"architecture" : "x86_64",
"osCpe" : "cpe:/o:fedoraproject:fedora:36"
}
Module libdatrie.so.1 with build-id 768a842bc0741478ded11a6209b709b6ff6ea43f
Stack trace of thread 2233:
#0 0x00007fc329952bbc PutSubImage (libX11.so.6 + 0x3ebbc)
#1 0x00007fc3299531e7 PutSubImage (libX11.so.6 + 0x3f1e7)
...
#63 0x00007fc3299531e7 PutSubImage (libX11.so.6 + 0x3f1e7)
ELF object binary architecture: AMD x86-64