As a workaround to be able to start the Tweaks app, you can edit the telegram autostart desktop file and add an Icon line like this. It doesn't matter that the icon file probably doesn't even exist.
Icon=telegram
The Firefox .desktop file doesn't matter for this issue.
As a workaround to be able to start the Tweaks app, you can edit the telegram autostart desktop file and add an Icon line like this. It doesn't matter that the icon file probably doesn't even exist.
Icon=telegram
The Firefox .desktop file doesn't matter for this issue.