Feb 01 13:12:11 pacpc systemd-coredump[3523]: Process 2662 (firefox) of user 1002 dumped core.
Stack trace of thread 2744:
#0 0x00007ff89bbc3473 n/a (n/a + 0x0)
Feb 01 13:12:10 pacpc kwin_x11[798]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 37828, resource id: 35651770, major code: 18 (ChangeProperty), mino>
Feb 01 13:12:10 pacpc kwin_x11[798]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 37780, resource id: 60817411, major code: 18 (ChangeProperty), mino>
Feb 01 13:12:10 pacpc kwin_x11[798]: qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 37775, resource id: 60817411, major code: 15 (QueryTree), minor cod>
Feb 01 13:12:10 pacpc systemd-coredump[3523]: Removed old coredump core.firefox.1002.321d498799e343d99fb8b9afbe1c9413.1743.1580549133000000000000.lz4.
Feb 01 13:12:09 pacpc systemd[1]: Started Process Core Dump (PID 3522/UID 0).