Ubuntu 22.04因Firefox频繁冻结（仅3个标签页也会触发）的问题求助

各位好，我目前在用Ubuntu 22.04，配置是16GB内存+1TB硬盘。

正常来说，跑大量资源密集的应用/进程导致系统冻结、不得不重启是合乎逻辑的，但我遇到的问题有点奇怪：只要运行Firefox，不管其他后台应用的资源占用有多低，系统都大概率会冻结，有时候甚至只开3个标签页就会触发。我怀疑过浏览器缓存的问题，所以平时基本都用隐私模式浏览，但还是会出现系统崩溃的情况。

我特意用系统监视器盯着CPU和内存占用，好几次崩溃的时候内存使用率都没超过20%，而且Firefox本身也没有生成这些崩溃事件的报告。我试过Mozilla官方建议的几个修复方法，比如关闭硬件加速之类的，但都没改善情况。之前我开4-5个窗口、每个窗口至少5个标签页都从来没崩过，现在不知道怎么回事就出问题了，恳请大家帮忙排查解决！

下面是系统日志的最后几行，最后一行之后我因为系统冻结按电源键强制关机了：

May 18 10:03:02 jonsmith kernel: [  290.566068] ACPI Error: Aborting method \_SB.PCI0.PEG0.PEGP.BRT6 due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.566228] ACPI Error: Aborting method \EV5 due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.566389] ACPI Error: Aborting method \SMEE due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.566550] ACPI Error: Aborting method \SMIE due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.566708] ACPI Error: Aborting method \NEVT due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.566899] ACPI Error: Aborting method \_SB.PCI0.LPCB.ECDV._Q66 due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.694431] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.PEG0.PEGP.BRT6.LCD], AE_NOT_FOUND (20220331/psargs-330)

May 18 10:03:02 jonsmith kernel: [  290.694455]

May 18 10:03:02 jonsmith kernel: [  290.694458] No Local Variables are initialized for Method [BRT6]

May 18 10:03:02 jonsmith kernel: [  290.694460]

May 18 10:03:02 jonsmith kernel: [  290.694463] Initialized Arguments for Method [BRT6]:  (2 arguments defined for method invocation)

May 18 10:03:02 jonsmith kernel: [  290.694465]   Arg0:   00000000409b1dbf <Obj>           Integer 0000000000000001

May 18 10:03:02 jonsmith kernel: [  290.694477]   Arg1:   00000000ad7ffa02 <Obj>           Integer 0000000000000000

May 18 10:03:02 jonsmith kernel: [  290.694486]

May 18 10:03:02 jonsmith kernel: [  290.694490] ACPI Error: Aborting method \_SB.PCI0.PEG0.PEGP.BRT6 due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.694650] ACPI Error: Aborting method \EV5 due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.694810] ACPI Error: Aborting method \SMEE due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.695006] ACPI Error: Aborting method \SMIE due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.695174] ACPI Error: Aborting method \NEVT due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:02 jonsmith kernel: [  290.695348] ACPI Error: Aborting method \_SB.PCI0.LPCB.ECDV._Q66 due to previous error (AE_NOT_FOUND) (20220331/psparse-529)

May 18 10:03:03 jonsmith kernel: [  291.373091] audit: type=1107 audit(1684384383.334:60): pid=1089 uid=102 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.9" pid=2650 label="snap.snap-store.ubuntu-software" peer_pid=1111 peer_label="unconfined"

May 18 10:03:03 jonsmith kernel: [  291.373091]  exe="/usr/bin/dbus-daemon" sauid=102 hostname=? addr=? terminal=?'

May 18 10:03:03 jonsmith kernel: [  291.373813] audit: type=1107 audit(1684384383.334:61): pid=1089 uid=102 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.PolicyKit1.Authority" member="CheckAuthorization" mask="send" name=":1.9" pid=2650 label="snap.snap-store.ubuntu-software" peer_pid=1111 peer_label="unconfined"

May 18 10:03:03 jonsmith kernel: [  291.373813]  exe="/usr/bin/dbus-daemon" sauid=102 hostname=? addr=? terminal=?'

May 18 10:03:03 jonsmith kernel: [  291.377907] audit: type=1107 audit(1684384383.338:62): pid=1089 uid=102 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.9" pid=2650 label="snap.snap-store.ubuntu-software" peer_pid=1111 peer_label="unconfined"

May 18 10:03:03 jonsmith kernel: [  291.377907]  exe="/usr/bin/dbus-daemon" sauid=102 hostname=? addr=? terminal=?'

May 18 10:03:03 jonsmith kernel: [  291.378569] audit: type=1107 audit(1684384383.338:63): pid=1089 uid=102 auid=4294967295 ses=4294967295 subj=unconfined msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.PolicyKit1.Authority" member="CheckAuthorization" mask="send" name=":1.9" pid=2650 label="snap.snap-store.ubuntu-software" peer_pid=1111 peer_label="unconfined"

May 18 10:03:03 jonsmith kernel: [  291.378569]  exe="/usr/bin/dbus-daemon" sauid=102 hostname=? addr=? terminal=?'

May 18 10:03:04 jonsmith kernel: [  292.511267] audit: type=1400 audit(1684384384.470:64): apparmor="DENIED" operation="open" class="file" profile="snap.snap-store.ubuntu-software" name="/etc/appstream.conf" pid=2650 comm="snap-store" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

May 18 10:03:07 jonsmith kernel: [  295.988293] audit: type=1400 audit(1684384387.949:65): apparmor="DENIED" operation="capable" class="cap" profile="/snap/snapd/19122/usr/lib/snapd/snap-confine" pid=3545 comm="snap-confine" capability=12  capname="net_admin"

May 18 10:03:07 jonsmith kernel: [  295.988305] audit: type=1400 audit(1684384387.949:66): apparmor="DENIED" operation="capable" class="cap" profile="/snap/snapd/19122/usr/lib/snapd/snap-confine" pid=3545 comm="snap-confine" capability=38  capname="perfmon"

May 18 10:03:08 jonsmith kernel: [  296.689793] audit: type=1400 audit(1684384388.653:67): apparmor="DENIED" operation="open" class="file" profile="snap-update-ns.firefox" name="/var/lib/" pid=3623 comm="5" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

May 18 10:03:08 jonsmith kernel: [  296.690038] audit: type=1400 audit(1684384388.653:68): apparmor="DENIED" operation="open" class="file" profile="snap-update-ns.firefox" name="/var/lib/" pid=3623 comm="5" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

May 18 10:03:08 jonsmith kernel: [  296.690251] audit: type=1400 audit(1684384388.653:69): apparmor="DENIED" operation="open" class="file" profile="snap-update-ns.firefox" name="/var/lib/" pid=3623 comm="5" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

May 18 10:03:08 jonsmith kernel: [  296.690442] audit: type=1400 audit(1684384388.653:70): apparmor="DENIED" operation="open" class="file" profile="snap-update-ns.firefox" name="/var/lib/" pid=3623 comm="5" requested_mask="r" denied_mask="r" fsuid=0 ouid=0

May 18 10:03:25 jonsmith kernel: [  313.441774] audit: type=1326 audit(1684384405.400:71): auid=1000 uid=1000 gid=1000 ses=3 subj=snap.firefox.firefox pid=3545 comm="firefox" exe="/snap/firefox/2667/usr/lib/firefox/firefox" sig=0 arch=c000003e syscall=314 compat=0 ip=0x7faa5b0c873d code=0x50000

May 18 10:03:40 jonsmith kernel: [  328.153613] audit: type=1326 audit(1684384420.108:72): auid=1000 uid=1000 gid=1000 ses=3 subj=snap.firefox.firefox pid=4460 comm="firefox" exe="/snap/firefox/2667/usr/lib/firefox/firefox" sig=0 arch=c000003e syscall=314 compat=0 ip=0x7fca7451473d code=0x50000

备注：内容来源于stack exchange，提问作者question_quasar