Sounds like bug 1765304, which was fixed recently. Please update your system. If the bug still occurs then please run this command to send us more information:
apport-collect 1813872 ** Changed in: gnome-shell (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1813872 Title: ubuntu keyboard indicator lost after focus on field type password Status in gnome-shell package in Ubuntu: Incomplete Bug description: 1. Open Firefox. 2. Go to page with field input type="password". 3. Stay focus on this field. 4. keyboard indicator lost. 5. Profit!!! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1813872/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp