Kwin Crashes When Firefox Attempts Adblock Install

Greetings,

I'm having a very specific issue and I'm not sure what is responsible. Whenever I try to install an adblock addon in Firefox, kwin crashes. Even navigating to the addons.mozilla.org page for AdBlock or other adblock addons prompts this crash. No other addons will trigger this crash.

I pulled the following from journalctl while causing a crash, but I honestly don't yet know enough to be able to say what here is useful or not.

Jan 17 10:45:54 nomad kcminit[2081]: Initializing  "kcm_mouse" :  "kcminit_mouse"
Jan 17 10:45:54 nomad kwin_x11[1319]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 30507, resource id: 85983237, major code: 18 (ChangeProperty), minor code: 0
Jan 17 10:45:56 nomad rtkit-daemon[1378]: Supervising 8 threads of 3 processes of 1 users.
Jan 17 10:45:56 nomad rtkit-daemon[1378]: Supervising 8 threads of 3 processes of 1 users.
Jan 17 10:46:06 nomad kwin_x11[1319]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 36960, resource id: 4194315, major code: 18 (ChangeProperty), minor code: 0
Jan 17 10:46:14 nomad kernel: [drm] PCIE GART of 256M enabled (table at 0x000000F400000000).
Jan 17 10:46:14 nomad kernel: [drm] UVD and UVD ENC initialized successfully.
Jan 17 10:46:14 nomad kernel: [drm] VCE initialized successfully.
Jan 17 10:46:14 nomad org_kde_powerdevil[1412]: powerdevil: ACTIVE SESSION PATH CHANGED: "/org/freedesktop/login1/session/_34"
Jan 17 10:46:14 nomad org_kde_powerdevil[1412]: powerdevil: Current session is now inactive
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil: ACTIVE SESSION PATH CHANGED: "/org/freedesktop/login1/session/_32"
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil: Current session is now active
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil: Can't contact ck
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil: Currently using activity  "b84a878e-0bdc-4d2d-a6ef-fb2663e73906"
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil: () ()
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil: () ()
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil: Loading profile for plugged AC
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil: Activity is not forcing a profile
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil:
Jan 17 10:46:17 nomad org_kde_powerdevil[1412]: powerdevil: Loading timeouts with  300000
Jan 17 10:46:17 nomad kwin_x11[1319]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 39247, resource id: 4194308, major code: 18 (ChangeProperty), minor code: 0
Jan 17 10:46:19 nomad kcminit[2164]: Initializing  "kcm_mouse" :  "kcminit_mouse"
Jan 17 10:46:19 nomad kwin_x11[1319]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 40187, resource id: 88080389, major code: 18 (ChangeProperty), minor code: 0
Jan 17 10:46:19 nomad kcminit[2172]: Initializing  "kcm_mouse" :  "kcminit_mouse"
Jan 17 10:46:19 nomad kwin_x11[1319]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 40672, resource id: 88080389, major code: 18 (ChangeProperty), minor code: 0
Jan 17 10:46:20 nomad kcminit[2180]: Initializing  "kcm_mouse" :  "kcminit_mouse"
Jan 17 10:46:20 nomad kwin_x11[1319]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 41291, resource id: 88080389, major code: 18 (ChangeProperty), minor code: 0
Jan 17 10:46:23 nomad kernel: amdgpu 0000:01:00.0: GPU pci config reset
Jan 17 10:46:23 nomad kcminit[2198]: Initializing  "kcm_mouse" :  "kcminit_mouse"
Jan 17 10:46:24 nomad kcminit[2206]: Initializing  "kcm_mouse" :  "kcminit_mouse"
Jan 17 10:46:30 nomad kernel: [drm] PCIE GART of 256M enabled (table at 0x000000F400000000).
Jan 17 10:46:30 nomad kernel: [drm] UVD and UVD ENC initialized successfully.
Jan 17 10:46:30 nomad kernel: [drm] VCE initialized successfully.
Jan 17 10:46:30 nomad org_kde_powerdevil[1412]: powerdevil: ACTIVE SESSION PATH CHANGED: "/org/freedesktop/login1/session/_34"
Jan 17 10:46:30 nomad org_kde_powerdevil[1412]: powerdevil: Current session is now inactive

Any help or direction as to where to look for additional logs or suggestions would be greatly appreciated.

Thanks!

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