Tweaks-Themes-Dark "do not show cursor in Username/Password Windows

[William Ritchie]

When changing Ubuntu 18.10 Themes using the application "Tweaks" to a dark theme, i.e. Yuru-Dark or Awaita-Dark, the cursor does not show up in web browser (Firefox) Username/Password Windows.

To demonstrate, change the Ubuntu Theme to Yuru-Dark or Awaita-Dark. Then open the browser Firefox and go to any website requiring a login which displays a Username and Password Field.

Select the Username or Password field. You will not be able to see any input in either field, but if you click on either and enter text or credentials in both, the fields will work and allow you to login.

The field text will be invisible and no cursor will be shown. Normally, when you click on a Username and Password field, you will get it "highlighted" and you will see the text being entered. With this bug, there will be no highlight and you will see no text being entered. The fields will be blank but active.

If you change the Ubuntu Theme back to something other than a "Dark Theme" the login Username and Password fields will show text being entered into these fields and you will be able to select each field with each being highlighted.

I do not know if this is present in Ubuntu 18.04.1 as I upgraded before using any dark theme.

This is annoying. Please fix.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: ubuntu-release-upgrader-core 1:18.10.11.3
ProcVersionSignature: Ubuntu 4.18.0-13.14-generic 4.18.17
Uname: Linux 4.18.0-13-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Tue Jan 29 08:59:20 2019
InstallationDate: Installed on 2018-12-12 (48 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to cosmic on 2018-12-12 (47 days ago)
VarLogDistupgradeTermlog:

mtime.conffile..etc.update-manager.release-upgrades: 2019-01-02T10:36:02.748543

[Steve Beattie (sbeattie)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.