С недавнего времени ФФ начал загружать  одно ядро процессора на 100%. Как правило это происходит при "плохом" интернете.
При попытке его закрыть вываливается в ошибку с отправкой данных. Что может быть и как победить его?

ФФ 66.0.2 (64-битный)

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inxi -Fxz
System:    Host: ahtoh-work Kernel: 5.0.5-1-MANJARO x86_64 bits: 64 compiler: gcc v: 8.2.1 Desktop: KDE Plasma 5.15.3
           Distro: Manjaro Linux
Machine:   Type: Laptop System: HP product: HP ProBook 650 G3 v: N/A serial: <filter>
           Mobo: HP model: 82AA v: KBC Version 49.41 serial: <filter> UEFI: HP v: P83 Ver. 01.23 date: 07/17/2018
Battery:   ID-1: BAT0 charge: 39.1 Wh condition: 46.2/46.2 Wh (100%) model: Hewlett-Packard Primary status: Charging
CPU:       Topology: Dual Core model: Intel Core i5-7200U bits: 64 type: MT MCP arch: Kaby Lake rev: 9
           L2 cache: 3072 KiB
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 21704
           Speed: 3100 MHz min/max: 400/3100 MHz Core speeds (MHz): 1: 3100 2: 3100 3: 3100 4: 3100
Graphics:  Device-1: Intel HD Graphics 620 vendor: Hewlett-Packard driver: i915 v: kernel bus ID: 00:02.0
           Display: x11 server: X.Org 1.20.4 driver: intel unloaded: modesetting resolution: 1920x1080~60Hz
           OpenGL: renderer: Mesa DRI Intel HD Graphics 620 (Kaby Lake GT2) v: 4.5 Mesa 18.3.5 direct render: Yes
Audio:     Device-1: Intel Sunrise Point-LP HD Audio vendor: Hewlett-Packard driver: snd_hda_intel v: kernel
           bus ID: 00:1f.3
           Sound Server: ALSA v: k5.0.5-1-MANJARO
Network:   Device-1: Intel Ethernet I219-V vendor: Hewlett-Packard driver: e1000e v: 3.2.6-k port: efa0 bus ID: 00:1f.6
           IF: enp0s31f6 state: down mac: <filter>
           Device-2: Intel Wireless 7265 driver: iwlwifi v: kernel port: efa0 bus ID: 02:00.0
           IF: wlp2s0 state: up mac: <filter>
Drives:    Local Storage: total: 727.81 GiB used: 538.60 GiB (74.0%)
           ID-1: /dev/mmcblk0 model: SD size: 29.16 GiB
           ID-2: /dev/nvme0n1 vendor: Samsung model: SSD 970 EVO 250GB size: 232.89 GiB
           ID-3: /dev/sda vendor: Western Digital model: WD5000LPLX-60ZNTT1 size: 465.76 GiB
Partition: ID-1: / size: 210.11 GiB used: 149.42 GiB (71.1%) fs: ext4 dev: /dev/nvme0n1p2
           ID-2: swap-1 size: 8.80 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/nvme0n1p3
Sensors:   System Temperatures: cpu: 58.0 C mobo: 0.0 C
           Fan Speeds (RPM): N/A
Info:      Processes: 187 Uptime: 37m Memory: 30.84 GiB used: 1.82 GiB (5.9%) Init: systemd Compilers: gcc: 8.2.1
           Shell: bash v: 5.0.2 inxi: 3.0.32

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Tasks: 186 total,   1 running, 185 sleeping,   0 stopped,   0 zombie
%Cpu0  : 72,2 us, 27,2 sy,  0,0 ni,  0,0 id,  0,0 wa,  0,7 hi,  0,0 si,  0,0 st
%Cpu1  :  0,3 us,  0,0 sy,  0,0 ni, 99,7 id,  0,0 wa,  0,0 hi,  0,0 si,  0,0 st
%Cpu2  :  0,3 us,  0,3 sy,  0,0 ni, 99,0 id,  0,3 wa,  0,0 hi,  0,0 si,  0,0 st
%Cpu3  :  0,7 us,  0,3 sy,  0,0 ni, 99,0 id,  0,0 wa,  0,0 hi,  0,0 si,  0,0 st
KiB Mem : 32333444 total, 28509284 free,  1697508 used,  2126652 buff/cache
KiB Swap:  9227464 total,  9227464 free,        0 used. 29706732 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                               
3834 ahtoh     20     3214724 528684 172196 S  99,7   1,6  18:00.64 /usr/lib/firefox/firefox                             
  781 root      20      347636 124932 108296 S   0,3   0,4   0:52.86 /usr/lib/Xorg :0 -seat seat0 -auth /run/lightdm/root+
1014 ahtoh     20      659784 103752  77712 S   0,3   0,3   0:41.94 /usr/bin/ksysguard                                   
1128 ahtoh     20        4292   2316   2060 S   0,3   0,0   0:10.60 /usr/bin/ksysguardd                                   
3993 ahtoh     20     8104108 253040 103368 S   0,3   0,8   0:27.92 /usr/lib/firefox/firefox -contentproc -childID 2 -is+
4203 ahtoh     20     1788396 216612 113552 S   0,3   0,7   0:48.47 /usr/lib/firefox/firefox -contentproc -childID 3 -is+
4619 ahtoh     20      428440  69048  57888 S   0,3   0,2   0:00.53 /usr/bin/konsole                                     
4806 ahtoh     20       13436   3888   3200 R   0,3   0,0   0:00.03 top


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AbortMessage: ###!!! ABORT: file resource://gre/modules/PlacesUtils.jsm, line 1870
Add-ons: %40firedrag:2.0.0,undo-close-tab-buttons-single%40codefisher.org:1.7,pavel.sherbakov%40gmail.com:69.5.1,uBlock0%40raymondhill.net:1.18.16,foxyproxy%40eric.h.jung:6.3,ruspell-extended%40addons.mozilla.org:1.0.3.1webext,jid1-kOqZHmOwLzTaFg%40jetpack:8.3.9,images%40wink.su:0.46,%7B66c3310d-738e-4975-806f-c2c5952d55c7%7D:1.0,fxmonitor%40mozilla.org:2.8,formautofill%40mozilla.org:1.0,screenshots%40mozilla.org:35.0.0,webcompat%40mozilla.org:3.0.2,langpack-ru%40firefox.mozilla.org:66.0buildid20190326175229,langpack-en-US%40firefox.mozilla.org:66.0buildid20190326175229,ru%40dictionaries.addons.mozilla.org:0.4.5
AsyncShutdownTimeout: {"phase":"Places Connection shutdown","conditions":[{"name":"PlacesUtils read-only connection closing as part of Places shutdown","state":"1. Service has initiated shutdown","filename":"resource://gre/modules/PlacesUtils.jsm","lineNumber":1870,"stack":["resource://gre/modules/PlacesUtils.jsm:setupDbForShutdown/promiseClosed<:1870","resource://gre/modules/PlacesUtils.jsm:setupDbForShutdown:1865","resource://gre/modules/PlacesUtils.jsm:null:1909"]}]}
BuildID: 20190328071059
ContentSandboxCapabilities: 87
ContentSandboxCapable: 1
ContentSandboxLevel: 4
CrashTime: 1554381890
DOMIPCEnabled: 1
Email: k.ahtoh@gmail.com
FramePoisonBase: 9223372036600930304
FramePoisonSize: 4096
InstallTime: 1554378709
MozCrashReason: MOZ_CRASH()
Notes: Manjaro LinuxFP(D00-L1000-W00000000-T000) OpenGL: Intel Open Source Technology Center -- Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2)  -- 3.0 Mesa 18.3.5 -- texture_from_pixmap
WR? WR- OMTP? OMTP+3 xpcom_runtime_abort(###!!! ABORT: file resource://gre/modules/PlacesUtils.jsm, line 1870)
ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
ProductName: Firefox
ReleaseChannel: release
SafeMode: 0
SecondsSinceLastCrash: 1564
ShutdownProgress: profile-before-change
StartupCrash: 0
StartupTime: 1554380332
TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86-64","buildId":"20190328071059","version":"66.0.2","vendor":"Mozilla","displayVersion":"66.0.2","platformVersion":"66.0.2","xpcomAbi":"x86_64-gcc3","updaterAvailable":false},"partner":{"distributionId":"Manjaro","distributionVersion":"1.0","partnerId":null,"distributor":"archlinux","distributorChannel":"firefox","partnerNames":["archlinux"]},"system":{"memoryMB":31576,"virtualMaxMB":null,"cpu":{"count":4,"cores":2,"vendor":"GenuineIntel","family":6,"model":142,"stepping":9,"l2cacheKB":256,"l3cacheKB":3072,"speedMHz":3100,"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2","hasAVX","hasAVX2","hasAES"]},"os":{"name":"Linux","version":"5.0.5-1-MANJARO","locale":"ru-RU"},"hdd":{"profile":{"model":null,"revision":null},"binary":{"model":null,"revision":null},"system":{"model":null,"revision":null}},"gfx":{"D2DEnabled":null,"DWriteEnabled":null,"ContentBackend":"Skia","LowEndMachine":false,"adapters":[{"description":"Intel Open Source Technology Center -- Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2) ","vendorID":"Intel Open Source Technology Center","deviceID":"Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2) ","subsysID":null,"RAM":null,"driver":null,"driverVersion":"3.0 Mesa 18.3.5","driverDate":null,"GPUActive":true}],"monitors":[],"features":{"compositor":"basic","gpuProcess":{"status":"unused"},"wrQualified":{"status":"blocked"},"webrender":{"status":"unavailable"}}},"appleModelId":null},"settings":{"blocklistEnabled":true,"e10sEnabled":true,"e10sMultiProcesses":8,"telemetryEnabled":false,"locale":"ru","intl":{"requestedLocales":["ru-RU"],"availableLocales":["en-US","ru"],"appLocales":["ru","und","en-US"],"systemLocales":["ru-RU"],"regionalPrefsLocales":["ru-RU"],"acceptLanguages":["ru","en-us","en"]},"update":{"channel":"release","enabled":true,"autoDownload":false},"userPrefs":{"browser.cache.disk.capacity":1048576,"browser.newtabpage.enabled":false,"browser.shell.checkDefaultBrowser":true,"browser.search.region":"RU","browser.search.widget.inNavBar":true,"browser.startup.homepage":"<user-set>","browser.startup.page":3,"privacy.donottrackheader.enabled":true},"sandbox":{"effectiveContentProcessLevel":4},"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":true,"defaultSearchEngine":"google-b-d","defaultSearchEngineData":{"name":"Google","loadPath":"jar:[app]/omni.ja!/google-b-d.xml","origin":"default","submissionURL":"https://www.google.com/search?client=firefox-b-d&q="}},"profile":{"creationDate":17570},"addons":{"activeAddons":{"@firedrag":{"version":"2.0.0","scope":1,"type":"extension","updateDay":17570,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Drag texts and links that is also fully compatible with multiprocess Firefox","name":"Fire Drag","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17570,"signedState":2},"undo-close-tab-buttons-single@codefisher.org":{"version":"1.7","scope":1,"type":"extension","updateDay":17570,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Reopen the last closed tab.  Really nice when a tab is closed by mistake, or you decided you did not","name":"Undo Close Tab Button","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17570,"signedState":2},"foxyproxy@eric.h.jung":{"version":"6.3","scope":1,"type":"extension","updateDay":17681,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Proxy switching made simple!","name":"FoxyProxy Standard","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17570,"signedState":2},"images@wink.su":{"version":"0.46","scope":1,"type":"extension","updateDay":17937,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Поиск дубликатов изображений с помощью сервисов Яндекс.Картинки, Tineye.com, Baidu.com и Google.com","name":"Кто украл мои картинки?","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17937,"signedState":2},"jid1-kOqZHmOwLzTaFg@jetpack":{"version":"8.3.9","scope":1,"type":"extension","updateDay":17946,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Для AliExpress, Gearbest, Banggood, JD и Lazada:\n1. Найти одинаковые товары\n2. История цен\n3. Цена в","name":"AliPrice - Следить за ценой на AliExpress","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17846,"signedState":2},"formautofill@mozilla.org":{"version":"1.0","scope":1,"type":"extension","updateDay":17983,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":null,"name":"Form Autofill","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17561},"screenshots@mozilla.org":{"version":"35.0.0","scope":1,"type":"extension","updateDay":17983,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Делайте вырезки и скриншоты из Интернета и сохраняйте их временно или навсегда.","name":"Firefox Screenshots","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17561},"webcompat@mozilla.org":{"version":"3.0.2","scope":1,"type":"extension","updateDay":17983,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Urgent post-release fixes for web compatibility.","name":"Web Compat","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17561},"uBlock0@raymondhill.net":{"version":"1.18.16","scope":1,"type":"extension","updateDay":17990,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Наконец-то, быстрый и эффективный блокировщик для браузеров.","name":"uBlock Origin","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17570,"signedState":2},"fxmonitor@mozilla.org":{"version":"2.8","scope":1,"type":"extension","updateDay":17990,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":null,"name":"Firefox Monitor","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17990,"signedState":3},"pavel.sherbakov@gmail.com":{"version":"69.5.1","scope":1,"type":"extension","updateDay":17990,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"New Tab Page Replacement with 3D Speed Dial and predefined images, sync. Best Start Page to organize","name":"FVD Speed Dial","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17570,"signedState":2}},"theme":{"id":"{66c3310d-738e-4975-806f-c2c5952d55c7}","blocklisted":false,"description":"Black and Grey minimalist theme.","name":"Black Shine","userDisabled":false,"appDisabled":false,"version":"1.0","scope":1,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17978,"updateDay":17978},"activePlugins":[{"name":"dummy","version":"0.1","description":"Blocklist unavailable","blocklisted":false,"disabled":true,"clicktoplay":false,"mimeTypes":["text/there.is.only.blocklist"],"updateDay":17990}],"activeGMPlugins":{"dummy-gmp":{"version":"0.1","userDisabled":false,"applyBackgroundUpdates":1}},"persona":null},"experiments":{"pref-rollout-block-autoplay-release-66-1535667":{"branch":"active","type":"normandy-prefrollout"},"rollout-monitor-v2-1505837":{"branch":"active","type":"normandy-prefrollout"},"rollout-restart-manager-release-1481278":{"branch":"active","type":"normandy-prefrollout"},"prefflip-push-performance-1491171":{"branch":"enabled","type":"normandy-exp"}}}
ThreadIdNameMapping: 3842:"Gecko_IOThread",3843:"JS Watchdog",3844:"JS Helper",3845:"JS Helper",3846:"JS Helper",3847:"JS Helper",3848:"Timer",3849:"Link Monitor",3863:"Cache2 I/O",3864:"Cookie",3866:"DOM Worker",3867:"IPDL Background",3871:"GMPThread",3872:"Worker Launcher",3873:"SoftwareVsyncThread",3874:"Compositor",3875:"ImgDecoder #1",3876:"ImageIO",3881:"ImageBridgeChild",3884:"HTML5 Parser",3898:"StyleThread#1",3897:"StyleThread#0",3899:"StyleThread#2",3910:"DOM Worker",3916:"FS Broker 3913",3973:"DNS Resolver #1",3976:"Cache I/O",3980:"localStorage DB",3982:"ImgDecoder #2",3983:"QuotaManager IO",3994:"FS Broker 3993",4013:"mozStorage #1",4020:"mozStorage #2",4032:"DOM Worker",4034:"mozStorage #5",4101:"SaveScripts",4204:"FS Broker 4203",4251:"FS Broker 4250",4279:"IdentityCrypto",4413:"FS Broker 4410",4457:"FS Broker 4449",4572:"FS Broker 4571",4587:"DNS Resolver #9",4915:"Shutdown Hang Terminator",
Throttleable: 1
URL: https://forum.mozilla-russia.org/viewforum.php?id=4
UptimeTS: 1558.195787
Vendor: Mozilla
Version: 66.0.2
useragent_locale: ru

This report also contains technical information about the state of the application when it crashed.

В первую очередь Правила п. 2.1 и 2.2,
FAQ - Починка браузера,
Исправление неполадок Firefox
Легкое решение большинства проблем
и поиск