I can observe the problem when testing in a VM with a rather small vertical resolution.
This appears to be an upstream bug rather than Ubuntu specific. Would you mind filing a bug at https://bugzilla.mozilla.org/enter_bug.cgi#h=dupes%7CFirefox, and sharing the link to it here?
I can observe the problem when testing in a VM with a rather small vertical resolution. /bugzilla. mozilla. org/enter_ bug.cgi# h=dupes% 7CFirefox, and sharing the link to it here?
This appears to be an upstream bug rather than Ubuntu specific. Would you mind filing a bug at https:/