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Omarchy
ProbeLabs65 findings · 95 requirementsA proof layer — requirements, tests and verified fixes — for two of Omarchy's subsystems: the application menu (launcher scripts, QML model, JSONC config, search and selection) and the lock screen (lock scripts, QML, PAM authentication). Scope is deliberately limited to those components of omacom/omarchy; the rest of the distribution is not covered.
No warning when all Chromium-family browsers are removed breaks webapp launchers
Reported by linuts · filed Aug 30, 2026Closed upstream on 2026-09-21 by bjarneo via an automated message, as a duplicate of #7034 (R-1814). GitHub close reason: completed.
At a glance
- 1 · What is claimed?
- Only the report text below — no validator has restated it as checkable claims yet.
- 2 · What does it affect?
- Not yet mapped to any requirement or component.
- 3 · Is it reproducible?
- No validation has been run yet.
- 4 · What remains unclear?
- Not validated yet: no claims, no reproducer.
- 5 · What happens next?
- Our staff decide whether the report is valid. Where this project allows it, agents decide whether it duplicates another report or a known issue. No decision has been recorded yet.
Original report
Bug: no warning when all Chromium-family browsers are removed
Summary
Launching any webapp (WhatsApp, Discord, YouTube, X, etc.) crashes with a
cryptic error when the default browser is not a Chromium-family browser
and no Chromium-family browser (Chrome/Brave/Edge/Opera/Vivaldi/Helium) is
installed. No warning is shown explaining that a supported browser is missing.
What happened
$ omarchy-launch-webapp https://web.whatsapp.com/
Error: Path "--app=https:/web.whatsapp.com" does not exist!Via the desktop launcher the webapp simply "crashes"/does nothing.
What was expected
A clear warning that no supported (Chromium-family) browser is installed, and
a graceful error instead of a crash.
Steps to reproduce
- Set a non-Chromium browser as default, e.g. Zen:
xdg-settings set default-web-browser zen.desktop
(zen.desktop returns Exec=/opt/zen-browser-bin/zen-bin %u)
2. Ensure no Chromium-family browser is installed (no chromium.desktop,
chrome.desktop, etc. in /usr/share/applications/ or ~/.local/share/applications/).
3. Run omarchy-launch-webapp https://web.whatsapp.com/ (or open the WhatsApp
desktop launcher / the SUPER+SHIFT+ALT+G keybind).
Root cause
In bin/omarchy-launch-webapp:
case $browser in
google-chrome* | brave* | microsoft-edge* | opera* | vivaldi* | helium*) ;;
*) browser="chromium.desktop" ;;
esacxdg-settings get default-web-browser returns zen.desktop, which is not
in the whitelist, so the script forces chromium.desktop. But chromium.desktop
does not exist (Chromium uninstalled), the sed emits an empty string, and the
command collapses to:
uwsm-app -- --app=https://web.whatsapp.com/The Wayland app daemon has no binary to exec, interprets --app=... as a path,
and returns Error: Path "--app=https:/web.whatsapp.com" does not exist!.
There is no check that the resolved browser binary actually exists, and no
error/warning surfaced to the user.
Suggested fix
- After resolving the
.desktopfile, verify a binary was found; if not, print
a clear message that no supported (Chromium-family) browser is installed and
exit with a non-zero code.
- Optionally detect whether the default browser is a supported one, and warn
when falling back.
Environment
- Omarchy: 4.0.1-1
- Default browser: Zen (
zen.desktop), Firefox-based - Kernel: 7.1.9-arch1-2
- Desktop: Hyprland (DM: SDDM), Omarchy
- Machine: Lenovo 300e 2nd Gen (Convertible, LNVNB161216)
- CPU: Intel Pentium Silver N5000 (4 cores, Goldmont Plus)
- GPU: Intel UHD Graphics 605 (i915), Gen-9.5
- Memory: 8 GiB
- Repos: pkgs.omarchy.org/stable (pacman, 1248 packages)
View raw text
## Bug: no warning when all Chromium-family browsers are removed ### Summary Launching any webapp (WhatsApp, Discord, YouTube, X, etc.) crashes with a cryptic error when the default browser is **not** a Chromium-family browser and **no** Chromium-family browser (Chrome/Brave/Edge/Opera/Vivaldi/Helium) is installed. No warning is shown explaining that a supported browser is missing. ### What happened ``` $ omarchy-launch-webapp https://web.whatsapp.com/ Error: Path "--app=https:/web.whatsapp.com" does not exist! ``` Via the desktop launcher the webapp simply "crashes"/does nothing. ### What was expected A clear warning that no supported (Chromium-family) browser is installed, and a graceful error instead of a crash. ### Steps to reproduce 1. Set a non-Chromium browser as default, e.g. Zen: `xdg-settings set default-web-browser zen.desktop` (`zen.desktop` returns `Exec=/opt/zen-browser-bin/zen-bin %u`) 2. Ensure no Chromium-family browser is installed (no `chromium.desktop`, `chrome.desktop`, etc. in `/usr/share/applications/` or `~/.local/share/applications/`). 3. Run `omarchy-launch-webapp https://web.whatsapp.com/` (or open the WhatsApp desktop launcher / the `SUPER+SHIFT+ALT+G` keybind). ### Root cause In `bin/omarchy-launch-webapp`: ```bash case $browser in google-chrome* | brave* | microsoft-edge* | opera* | vivaldi* | helium*) ;; *) browser="chromium.desktop" ;; esac ``` `xdg-settings get default-web-browser` returns `zen.desktop`, which is **not** in the whitelist, so the script forces `chromium.desktop`. But `chromium.desktop` does not exist (Chromium uninstalled), the `sed` emits an empty string, and the command collapses to: ``` uwsm-app -- --app=https://web.whatsapp.com/ ``` The Wayland app daemon has no binary to exec, interprets `--app=...` as a path, and returns `Error: Path "--app=https:/web.whatsapp.com" does not exist!`. There is no check that the resolved browser binary actually exists, and no error/warning surfaced to the user. ### Suggested fix - After resolving the `.desktop` file, verify a binary was found; if not, print a clear message that no supported (Chromium-family) browser is installed and exit with a non-zero code. - Optionally detect whether the default browser is a supported one, and warn when falling back. ### Environment - Omarchy: 4.0.1-1 - Default browser: Zen (`zen.desktop`), Firefox-based - Kernel: 7.1.9-arch1-2 - Desktop: Hyprland (DM: SDDM), Omarchy - Machine: Lenovo 300e 2nd Gen (Convertible, LNVNB161216) - CPU: Intel Pentium Silver N5000 (4 cores, Goldmont Plus) - GPU: Intel UHD Graphics 605 (i915), Gen-9.5 - Memory: 8 GiB - Repos: pkgs.omarchy.org/stable (pacman, 1248 packages)
Validation
Not checked yet. A validator will restate this report as checkable claims, map it to the project's requirements and write a reproducer that the proof engine runs.
Linked
Not linked to any known issue, other report or change yet.
Decision
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No decision has been recorded yet.