Firefox forgets modifier key is held

Question

Firefox forgets modifier key is held

Closed this issue 3 months ago · 1 comments

Summary

In some situations, I'm seeing a modifier key get lost. The application continues to receive key events, but acts as if I've released the modifier.

I see this issue in Hyprland but not in Sway

Steps to Reproduce

Run fcitx5
Run firefox
Navigate to, e.g., example.com
Start holding Ctrl
Press T (to open a new tab)
Press Tab (to navigate to the first tab)
Press W (to close the tab)

But the tab doesn't close. Attempting to use ctrl+tab at this point starts selecting UI elements, implying that the modifier key has been lost.

Expected Behavior

Further ctrl shortcuts should continue to work, only the second (empty) tab should remain open

Output of fcitx5-diagnose command

System Info:

uname -a:

Linux sledgehammer 6.6.41-gentoo-dist #1 SMP PREEMPT_DYNAMIC Thu Jul 18 14:37:53 -00 2024 x86_64 AMD Ryzen 7 2700 Eight-Core Processor AuthenticAMD GNU/Linux

lsb_release -a:

LSB Version:	n/a
Distributor ID:	Gentoo
Description:	Gentoo Linux
Release:	2.15
Codename:	n/a

lsb_release -d:
```
Description:	Gentoo Linux
```
/etc/lsb-release:
```
DISTRIB_ID="Gentoo"
```

/etc/os-release:

NAME=Gentoo
ID=gentoo
PRETTY_NAME="Gentoo Linux"
ANSI_COLOR="1;32"
HOME_URL="https://www.gentoo.org/"
SUPPORT_URL="https://www.gentoo.org/support/"
BUG_REPORT_URL="https://bugs.gentoo.org/"
VERSION_ID="2.15"

Desktop Environment:

Cannot determine desktop environment.
XDG SESSION TYPE:
```
XDG_SESSION_TYPE='wayland'
```
Bash Version:
```
BASH_VERSION='5.2.26(1)-release'
```

Environment:

DISPLAY:

DISPLAY=':0'


WAYLAND_DISPLAY='wayland-1'

Keyboard Layout:

setxkbmap:

setxkbmap not found.

xprop:

_XKB_RULES_NAMES(STRING) = "evdev", "pc105", "us", "", ""

Locale:

All locales:
```
C
C.utf8
POSIX
en_US.utf8
```

Current locale:

LANG=en_US.utf8
LC_CTYPE="C"
LC_NUMERIC="C"
LC_TIME="C"
LC_COLLATE="C"
LC_MONETARY="C"
LC_MESSAGES="C"
LC_PAPER="C"
LC_NAME="C"
LC_ADDRESS="C"
LC_TELEPHONE="C"
LC_MEASUREMENT="C"
LC_IDENTIFICATION="C"
LC_ALL=C

Directories:
1. Home:
```
/home/colin
```
2. ${XDG_CONFIG_HOME}:
  
  Environment variable XDG_CONFIG_HOME is not set.
  
  Current value of XDG_CONFIG_HOME is ~/.config (/home/colin/.config).
3. Fcitx5 Settings Directory:
  
  Current fcitx5 settings directory is ~/.config/fcitx5 (/home/colin/.config/fcitx5).
Current user:

The script is run as colin (1000).

Fcitx State:

executable:

Found fcitx5 at /usr/bin/fcitx5.
version:

Fcitx version: 5.1.10
process:

Found 1 fcitx5 process:
```
20664 fcitx5
```
fcitx5-remote:

fcitx5-remote works properly.

DBus interface:

Using dbus-send to check dbus.

Owner of DBus name org.fcitx.Fcitx5 is :1.14.

PID of DBus name org.fcitx.Fcitx5 owner is 20664.

Debug information from dbus:

   Group [wayland:] has 4 InputContext(s)
  IC [033c387d73a34004b48700c472593e29] program:Alacritty frontend:wayland_v2 cap:100000072 focus:1
  IC [ce6fed5517c5426491e0478912feca9d] program:Alacritty frontend:wayland_v2 cap:100000072 focus:0
  IC [8649be76e546486b9ccdb8f6bb62c602] program:firefox-esr frontend:wayland_v2 cap:72 focus:0
  IC [616b4a30e1354870bf7959a9a17c4d22] program: frontend:wayland_v2 cap:100000072 focus:0
Group [x11::0] has 0 InputContext(s)
Input Context without group

Fcitx Configure UI:

Config Tool Wrapper:

Found fcitx5-configtool at /usr/bin/fcitx5-configtool.
Config GUI for qt:

Found fcitx5-config-qt at /usr/bin/fcitx5-config-qt.
Config GUI for kde:

kcmshell5 not found.

Frontends setup:

The environment variable checked by this script only shows the environment under current shell. It is still possible that you did not set the environment to the whole graphic desktop session. You may inspect the actual environment variable of a certain process by using xargs -0 -L1 /proc/$PID/environ for a certain process that you find not working.

Xim:

${XMODIFIERS}:

XMODIFIERS is not set

Please set environment variable XMODIFIERS to "@im=fcitx" using the tool your distribution provides or add export XMODIFIERS=@im=fcitx to your ~/.xprofile. See Input Method Related Environment Variables: XMODIFIERS.
Xim Server Name from Environment variable is fcitx.
XIM_SERVERS on root window:

Xim server name is the same with that set in the environment variable.
XIM encoding:

Your LC_CTYPE is set to C whose encoding is not UTF-8. You may have trouble committing strings using XIM.

Qt:

qt4 - ${QT4_IM_MODULE}:

Please set environment variable QT_IM_MODULE to "fcitx" using the tool your distribution provides or add export QT_IM_MODULE=fcitx to your ~/.xprofile. See Input Method Related Environment Variables: QT_IM_MODULE.

fcitx5-qt4-immodule-probing not found.
qt5 - ${QT_IM_MODULE}:

Please set environment variable QT_IM_MODULE to "fcitx" using the tool your distribution provides or add export QT_IM_MODULE=fcitx to your ~/.xprofile. See Input Method Related Environment Variables: QT_IM_MODULE.

It is OK to use qt5 built-in Wayland im module if your compositor fully supports text-input protocol used by qt5.

Using fcitx5-qt5-immodule-probing to check the actual im module to be used under current environment:
```
QT_QPA_PLATFORM=wayland
QT_IM_MODULE=
IM_MODULE_CLASSNAME=QComposeInputContext
```
qt6 - ${QT_IM_MODULE}:

Please set environment variable QT_IM_MODULE to "fcitx" using the tool your distribution provides or add export QT_IM_MODULE=fcitx to your ~/.xprofile. See Input Method Related Environment Variables: QT_IM_MODULE.

It is OK to use qt6 built-in Wayland im module if your compositor fully supports text-input protocol used by qt6.

fcitx5-qt6-immodule-probing not found.
Qt IM module files:

Found fcitx5 im module for qt5: /usr/lib64/qt5/plugins/platforminputcontexts/libfcitx5platforminputcontextplugin.so.
Found fcitx5 qt5 module: /usr/lib64/fcitx5/qt5/libfcitx-quickphrase-editor5.so.

Following error may not be accurate because guessing Qt version from path depends on how your distribution packages Qt. It is not a critical error if you do not use any Qt application with certain version of Qt or you are using text-input support by Qt under Wayland.
Cannot find fcitx5 input method module for Qt4.
Cannot find fcitx5 input method module for Qt6.

Gtk:

gtk - ${GTK_IM_MODULE}:

Please set environment variable GTK_IM_MODULE to "fcitx" using the tool your distribution provides or add export GTK_IM_MODULE=fcitx to your ~/.xprofile. See Input Method Related Environment Variables: GTK_IM_MODULE.

It is OK to use gtk built-in Wayland im module if your compositor fully supports text-input protocol used by gtk.

fcitx5-gtk2-immodule-probing not found.

fcitx5-gtk3-immodule-probing not found.

fcitx5-gtk4-immodule-probing not found.
gtk-query-immodules:
1. gtk 2:
  
  Found gtk-query-immodules for gtk 2.24.33 at /usr/bin/gtk-query-immodules-2.0.
  Version Line:
```
# Created by /usr/bin/gtk-query-immodules-2.0 from gtk+-2.24.33
```
  Failed to find fcitx5 in the output of /usr/bin/gtk-query-immodules-2.0
  
  Cannot find fcitx5 im module for gtk 2.
2. gtk 3:
  
  Found gtk-query-immodules for gtk 3.24.41 at /usr/bin/gtk-query-immodules-3.0.
  Version Line:
```
# Created by /usr/bin/gtk-query-immodules-3.0 from gtk+-3.24.41
```
  Failed to find fcitx5 in the output of /usr/bin/gtk-query-immodules-3.0
  
  Cannot find fcitx5 im module for gtk 3.
Gtk IM module cache:
1. gtk 2:
  
  Found immodules cache for gtk 2.24.33 at /usr/lib64/gtk-2.0/2.10.0/immodules.cache.
  Version Line:
```
# Created by /usr/bin/x86_64-pc-linux-gnu-gtk-query-immodules-2.0 from gtk+-2.24.33
```
  Failed to find fcitx5 in immodule cache at /usr/lib64/gtk-2.0/2.10.0/immodules.cache
  
  Cannot find fcitx5 im module for gtk 2 in cache.
2. gtk 3:
  
  Found immodules cache for gtk 3.24.41 at /usr/lib/gtk-3.0/3.0.0/immodules.cache.
  Version Line:
```
# Created by /usr/bin/i686-pc-linux-gnu-gtk-query-immodules-3.0 from gtk+-3.24.41
```
  Failed to find fcitx5 in immodule cache at /usr/lib/gtk-3.0/3.0.0/immodules.cache
  
  Found immodules cache for gtk 3.24.41 at /usr/lib64/gtk-3.0/3.0.0/immodules.cache.
  Version Line:
```
# Created by /usr/bin/x86_64-pc-linux-gnu-gtk-query-immodules-3.0 from gtk+-3.24.41
```
  Failed to find fcitx5 in immodule cache at /usr/lib64/gtk-3.0/3.0.0/immodules.cache
  
  Cannot find fcitx5 im module for gtk 3 in cache.
Gtk IM module files:
1. gtk 2:
  
  All found Gtk 2 immodule files exist.
2. gtk 3:
  
  All found Gtk 3 immodule files exist.
3. gtk 4:
  
  All found Gtk 4 immodule files exist.

Configuration:

Fcitx Addons:

Addon Config Dir:

Found fcitx5 addon config directory: /usr/share/fcitx5/addon.

Addon List:

Found 21 enabled addons:

Classic User Interface 5.1.10
Clipboard 5.1.10
DBus 5.1.10
DBus Frontend 5.1.10
Emoji 5.1.10
Fcitx4 Frontend 5.1.10
IBus Frontend 5.1.10
Input method selector 5.1.10
Keyboard 5.1.10
KDE Input Method Panel 5.1.10
Mozc 
Status Notifier 5.1.10
Notification 5.1.10
Quick Phrase 5.1.10
Spell 5.1.10
Unicode 5.1.10
DBus Virtual Keyboard 5.1.10
Wayland 5.1.10
Wayland Input method frontend 5.1.10
XCB 5.1.10
X Input Method Frontend 5.1.10

Found 0 disabled addons:

Addon Libraries:

All libraries for all addons are found.

User Interface:

Found 3 enabled user interface addons:

Classic User Interface
KDE Input Method Panel
DBus Virtual Keyboard

Input Methods:

/home/colin/.config/fcitx5/profile:

[Groups/0]
# Group Name
Name=Default
# Layout
Default Layout=us
# Default Input Method
DefaultIM=mozc

[Groups/0/Items/0]
# Name
Name=keyboard-us
# Layout
Layout=

[Groups/0/Items/1]
# Name
Name=mozc
# Layout
Layout=

[GroupOrder]
0=Default

Log:

date:
```
Sat Sep  7 01:23:56 MDT 2024
```
/home/colin/.config/fcitx5/crash.log:

/home/colin/.config/fcitx5/crash.log not found.

Warning: the output of fcitx5-diagnose contains sensitive information, including the distribution name, kernel version, name of currently running programs, etc.

Though such information can be helpful to developers for diagnostic purpose, please double check and remove as necessary before posting it online publicly.

Answer 1 · 2024-09-19T17:47:44.000Z

Feels like a hyprland issue then.