Can't open links in Firefox

[TheToto]

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Hello, (I'm on ArchLinux) When i try to open a link from Discord (with firefox as default browser), it doesn't work ; Because after setting LD_LIBRARY_PATH to appimage lib folders :

$ xdg-open https://google.fr           
XPCOMGlueLoad error for file /usr/lib/firefox/libxul.so:                                                                                     
/home/toto/discord/squashfs-root/usr/lib/x86_64-linux-gnu/libssl3.so: version `NSS_3.33' not found (required by /usr/lib/firefox/libxul.so)
Couldn't load XPCOM.

So Discord can't open links because firefox fails to open with appimage libs. Some tips/workaround ?

[simoniz0r]

I cannot reproduce this. Make sure Firefox is set as your default browser in xdg-settings. Setting the LD_LIBRARY_PATH has nothing to do with opening a browser.

LD_LIBRARY_PATH is set to include the existing directories, so it's not affecting how programs that are already installed on your system work.

[junetried]

Can reproduce. A popup opens, saying Failed to execute default Web Browser. Input/output error. Opening links works correctly with the discord-installer package. Running xdg-open www.example.com opens a tab in Firefox as expected.

[Exagone313]

I reproduce this issue too. Will see if there is a way to make some kind of wrapper than unset some environment variables.

XPCOMGlueLoad error for file /usr/lib/firefox/libxul.so:
/tmp/.mount_discorSPl0X1/usr/lib/x86_64-linux-gnu/libssl3.so: version `NSS_3.80' not found (required by /usr/lib/firefox/libxul.so)
Couldn't load XPCOM.

I don't have any popup opening, I had to check the console output from Discord.

[Exagone313]

I can confirm that unsetting LD_LIBRARY_PATH in an xdg-open wrapper will fix the issue.

There are probably more informations on this GitHub issue: https://github.com/NixOS/nixpkgs/issues/160923

I do not use nixOS, but it probably has more in depth informations. For example, it seems to happen with some other appimages too.

For the record, here is the value I get for this environment variable:

LD_LIBRARY_PATH=/tmp/.mount_discorSPl0X1/usr/lib/:/tmp/.mount_discorSPl0X1/usr/lib/x86_64-linux-gnu:

And an example wrapper:

#!/bin/sh
# discord sets this variable which breaks wayland apps
unset GDK_BACKEND
# discord app image sets this
if [ -n "${APPDIR}" ]; then
	unset LD_LIBRARY_PATH
fi
exec /usr/bin/xdg-open "$@"

[junetried]

I can confirm that unsetting LD_LIBRARY_PATH in an xdg-open wrapper will fix the issue.

There are probably more informations on this GitHub issue: NixOS/nixpkgs#160923

I do not use nixOS, but it probably has more in depth informations. For example, it seems to happen with some other appimages too.

For the record, here is the value I get for this environment variable:

LD_LIBRARY_PATH=/tmp/.mount_discorSPl0X1/usr/lib/:/tmp/.mount_discorSPl0X1/usr/lib/x86_64-linux-gnu:

And an example wrapper:

#!/bin/sh
# discord sets this variable which breaks wayland apps
unset GDK_BACKEND
# discord app image sets this
if [ -n "${APPDIR}" ]; then
	unset LD_LIBRARY_PATH
fi
exec /usr/bin/xdg-open "$@"

This isn't an acceptable fix, but it does suggest that libraries are at fault for this issue, which I've suggested before but it was quickly shot down.

[simoniz0r]

After thinking about this, the only things I can think of that are bundled that could cause this are libnspr4 and libnss3 as those are both used by Firefox. I will try building three test AppImages to see if one or both of those are the issue.

[simoniz0r]

This should be fixed by 0d7929b. Please try redownloading the AppImage from the releases page and let me know if this does not fix the issue for you.