Context menu does not show on passwords fields

[Jawtheshark]

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.

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$ 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

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[arty (me-arty)]

At least several other people are having the same problem here
https://support.mozilla.org/de/questions/1214123

Firefox installed from snap doesn’t have this problem https://support.mozilla.org/de/questions/1214123#answer-1104753 so the cause might be some Ubuntu modification.

Curiously, switching the input method from IBus to i.e. XIM fixes the issue https://support.mozilla.org/de/questions/1214123?page=2#answer-1152091

[Olivier Tilloy (osomon)]

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).

[Harald H. (haarektrans)]

A update to Ubuntu received today seems to have fixed the issue.

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$ less /var/log/apt/history.log

Upgrade: gedit:amd64 (3.28.1-1ubuntu1, 3.28.1-1ubuntu1.1), libgweather-3-15:amd64 (3.28.1-1, 3.28.2-1~ubuntu18.04.1), gir1.2-gweather-3.0:amd64 (3.28.1-1, 3.28.2-1~ubuntu18.04.1), gnome-shell-common:amd64 (3.28.3-0ubuntu0.18.04.3, 3.28.3-0ubuntu0.18.04.4), gedit-common:amd64 (3.28.1-1ubuntu1, 3.28.1-1ubuntu1.1), gnome-shell:amd64 (3.28.3-0ubuntu0.18.04.3, 3.28.3-0ubuntu0.18.04.4), libgweather-common:amd64 (3.28.1-1, 3.28.2-1~ubuntu18.04.1)

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I'm no longer able to reproduce the issue.

It seems to have been fixed by this patch:
https://bugs.launchpad.net/ubuntu/+source/ibus/+bug/1765304

[Jawtheshark (jawtheshark)]

Hello, I confirm that my current 18.04 installation, with Firefox 64.0, the issue is gone.

[Olivier Tilloy (osomon)]

Thanks for the confirmation. The update that fixed the issue is gnome-shell 3.28.3-0ubuntu0.18.04.4. I am therefore marking this bug as a duplicate of bug #1765304.