[BUG] Flatpak not launching on CachyOS with Waterfox/Librewolf

[Loklann]

• My issue is related to Add Water, the standalone installer app, and is not related to the Firefox GNOME Theme.

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Describe the bug
Flatpak will not launch.

To Reproduce
Install and try to launch the flatpak.

Expected behavior
The flatpak should launch.

Screenshots
N/A

Technical Details (please complete the following information):

 - Distribution: CachyOS
 - Desktop environment: GNOME 48
 
 - Add Water version: 1.2.6 (latest at the time)
 - Add Water package format: Flatpak
 - Theme version: N/A

 - Browser name: Waterfox & Librewolf
 - Browser package format: Flatpak
 - Browser version: 6.5.11 & 141.0-1 (respectively)

Additional context
N/A

Attach log file if necessary
See below for the logs when trying to run AddWater from the command line.

 $ flatpak run dev.qwery.AddWater

/home/username/.var/app/dev.qwery.AddWater/cache/add-water already exists. Skipped.
/home/username/.var/app/dev.qwery.AddWater/cache/add-water/downloads already exists. Skipped.
/home/username/.var/app/dev.qwery.AddWater/cache/add-water/logs already exists. Skipped.
All paths initialized.
-----------------------
[INFO]   addwater.apps.firefox.firefox_details — 21:19 || Setting Firefox data path: 
[ERROR]   addwater.apps.firefox.firefox_details — 21:19 || Tried to set app_path to non-existant path. Path given: 
[CRITICAL]   addwater.apps.firefox.firefox_details — 21:19 || Could not find any valid data paths. App cannot function.
Traceback (most recent call last):
  File "/app/share/addwater/addwater/apps/firefox/firefox_details.py", line 90, in __init__
    self.set_data_path(current_path)
  File "/app/share/addwater/addwater/apps/firefox/firefox_details.py", line 167, in set_data_path
    raise FileNotFoundError("Invalid data path")
FileNotFoundError: Invalid data path

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/app/bin/addwater", line 46, in <module>
    sys.exit(main.main(VERSION))
             ^^^^^^^^^^^^^^^^^^
  File "/app/share/addwater/addwater/main.py", line 179, in main
    app = AddWaterApplication()
          ^^^^^^^^^^^^^^^^^^^^^
  File "/app/share/addwater/addwater/main.py", line 63, in __init__
    self.backends = self.construct_backends()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/share/addwater/addwater/main.py", line 133, in construct_backends
    ff_app_detail = FirefoxAppDetails()
                    ^^^^^^^^^^^^^^^^^^^
  File "/app/share/addwater/addwater/apps/firefox/firefox_details.py", line 94, in __init__
    self.set_data_path(available_paths[0]["path"])
                       ~~~~~~~~~~~~~~~^^^
IndexError: list index out of range

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• I have included enough relevant information to solve my problem.

[Loklann]

Installing Firefox Flatpak will allow the app to launch. But it doesn't work with only Librewolf flatpak installed.
However, installing Firefox, then removing it will allow the app to launch