I can reliably reproduce the issue in a 18.04 VM with firefox 63.0. Unsetting the GTK_IM_MODULE environment variable makes the issue go away (see also bug #1765304, which is probably related).
The same version of firefox in Ubuntu 18.10 is not affected, so it appears to be a bionic-only issue (which is consistent with what has been observed for similar issues related to firefox+ibus+password fields). ** Changed in: firefox (Ubuntu) Importance: Undecided => Medium ** Summary changed: - Context menu does not form on passwords fields + Context menu does not show on passwords fields -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1762726 Title: Context menu does not show on passwords fields Status in firefox package in Ubuntu: Confirmed Bug description: As many people I use a password manager in order to manage my logins. For that I simply copy/paste the username and password in the respective fields from another application. Given some webpages block this by JavaScript, I have the following about:config preference: dom.event.clipboardevents.enabled=false This mostly as an information, because it doesn't seem to affect the problem. Take a login page (I tried AliExpress - https://login.aliexpress.com/), and right click in the username field. A context menu is shown, containing -amongst others- "Paste". Click right in the password field, and the context menu is not shown. I would expect it to be shown. Using Ctrl-V does work. I tried a recreated profile in order to exclude profile-based issues. The same happens. This does not happen on Ubuntu 16.04LTS (59.0.2+build1-0ubuntu0.16.04.3) with equivalent version Firefox (59.0.2) I am not 100% sure this is a firefox issue. Perhaps this is Gnome related, because I use the default interface on each installation: Unity on 16.04LTS and Gnome3 on 18.04LTS. ---- $ lsb_release -rd Description: Ubuntu Bionic Beaver (development branch) Release: 18.04 $ apt-cache policy firefox firefox: Installed: 59.0.2+build1-0ubuntu1 Candidate: 59.0.2+build1-0ubuntu1 Version table: *** 59.0.2+build1-0ubuntu1 500 500 http://it.archive.ubuntu.com/ubuntu bionic/main amd64 Packages 100 /var/lib/dpkg/status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1762726/+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