Also: - It looks like you're on Linux -- what distro/version are you using? - Do you know what sort of Firefox package are you using -- e.g. it from a snap (the default on Ubuntu 22.04 and newer), or Flatpak, or a .tar.gz downloaded from Mozilla, or another sort of package? (If you're using a snap, for example: we've hit issues in the past where the snappified Firefox had a different font/text configuration from a .tar.gz Firefox installation, due to an issue with the snap environment.)
Bug 1850830 Comment 3 Edit History
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Also: - It looks like you're on Linux -- what distro/version are you using? - Do you know what sort of Firefox package are you using -- e.g. it from a snap (the default on Ubuntu 22.04 and newer), or Flatpak, or a tarball downloaded from Mozilla, or another sort of package? (If you're using a snap, for example: we've hit issues in the past where the snappified Firefox had a different font/text configuration from a tarball Firefox installation, due to an issue with the snap environment.)