Hi Jarno, thanks for using Ubuntu and thanks for taking the time to file this bug report! The issue was most likely because Firefox was not restarted after it was updated, as is recommended after the update completes. Since you say Firefox behaves properly after a restart I will close this bug. Feel free to re-open it (by clicking the arrow next to the Status and selecting "New" and then "Save Changes") if the issue persists. Thanks again!
Hi Jarno, thanks for using Ubuntu and thanks for taking the time to file this bug report! The issue was most likely because Firefox was not restarted after it was updated, as is recommended after the update completes. Since you say Firefox behaves properly after a restart I will close this bug. Feel free to re-open it (by clicking the arrow next to the Status and selecting "New" and then "Save Changes") if the issue persists. Thanks again!