There have been times when a user with issues used Safe Mode, then restarted normally, and found the issue was gone.

It could be the work of one of your add-ons, or it could be Hardware Acceleration. How to disable Hardware Acceleration {web link}

Type about:addons<enter> in the address bar to open your Add-ons Manager. Hot key; <Control> (Mac=<Command>) <Shift> A)

In the Add-ons Manager, on the left, select Extensions. Disable a few add-ons, then Restart Firefox.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All Of them.

If the problem continues, disable some more (restarting FF). Continue until the problem is gone. After, you know what group is causing the issue. Re-enable the last group ONE AT A TIME (restarting FF) until the problem returns.

Once you think you found the problem, disable that and re-enable all the others, then restart again. Let us know who the suspect is, detective.

Hello Fred,

Kind appreciations for your analysis and suggestions after my attempt in Safe Mode.

Although I did have another crash today, I have disabled the hardware aceleration as you have suggested; will wait to see the results and then get back to you with a report.

Many thanks once again.

Hello Fred

My Firefox issue remains suspended despite each measure taken following your kind advice.

I just received a crash report from a small grey box that appeared suddenly saying: "We're Sorry

Firefox had a problem and crashed. We’ll try to restore your tabs and windows when it restarts."

Here are the full details of this crash report:

AbortMessage: ###!!! ABORT: file resource://gre/modules/addons/XPIProvider.jsm, line 2211 AdapterDeviceID: 0x791f AdapterDriverVersion: 8.561.0.0 AdapterSubsysID: 02061028 AdapterVendorID: 0x1002 Add-ons: %7Bd10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d%7D:3.4.2,nortonsafesearch_ul_2%40symantec.com:3.1.0.20,nortonsafeweb%40symantec.com:3.3.1.4,%40windscribeff:2.4.1,fxmonitor%40mozilla.org:2.8,aushelper%40mozilla.org:2.0,firefox%40getpocket.com:1.0.5,formautofill%40mozilla.org:1.0,onboarding%40mozilla.org:1.0,screenshots%40mozilla.org:33.0.0,webcompat%40mozilla.org:2.0.1,webcompat-reporter%40mozilla.org:1.0.0 AsyncShutdownTimeout: {"phase":"profile-change-teardown","conditions":[{"name":"Extension shutdown: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}","state":{"state":"Startup: Run manifest: asyncEmitManifestEntry(\"background\")"},"filename":"resource://gre/modules/addons/XPIProvider.jsm","lineNumber":2211,"stack":["resource://gre/modules/addons/XPIProvider.jsm:startup/<:2211","resource://gre/modules/AsyncShutdown.jsm:observe:541"]},{"name":"Extension shutdown: nortonsafeweb@symantec.com","state":{"state":"Startup: Run manifest: asyncEmitManifestEntry(\"background\")"},"filename":"resource://gre/modules/addons/XPIProvider.jsm","lineNumber":2211,"stack":["resource://gre/modules/addons/XPIProvider.jsm:startup/<:2211","resource://gre/modules/AsyncShutdown.jsm:observe:541"]}]} AvailablePageFile: 2869010432 AvailablePhysicalMemory: 835616768 AvailableVirtualMemory: 8794353946624 BIOS_Manufacturer: Dell Inc. BlockedDllList: BreakpadReserveAddress: 47644672 BreakpadReserveSize: 83886080 BuildID: 20181114214635 ContentSandboxCapable: 1 ContentSandboxLevel: 5 CrashTime: 1544185718 DOMIPCEnabled: 1 FramePoisonBase: 9223372036600889344 FramePoisonSize: 65536 GPUProcessLaunchCount: 1 GPUProcessStatus: Running InstallTime: 1542417851 ModuleSignatureInfo: {"Apple Inc.":["mdnsNSP.dll"],"Microsoft Corporation":["api-ms-win-crt-utility-l1-1-0.dll","api-ms-win-crt-environment-l1-1-0.dll","api-ms-win-crt-filesystem-l1-1-0.dll","api-ms-win-crt-time-l1-1-0.dll","api-ms-win-crt-multibyte-l1-1-0.dll","api-ms-win-crt-math-l1-1-0.dll","api-ms-win-crt-locale-l1-1-0.dll","api-ms-win-crt-convert-l1-1-0.dll","ucrtbase.dll","msvcp140.dll","api-ms-win-crt-stdio-l1-1-0.dll","api-ms-win-crt-heap-l1-1-0.dll","api-ms-win-crt-string-l1-1-0.dll","api-ms-win-core-file-l1-2-0.dll","api-ms-win-core-processthreads-l1-1-1.dll","api-ms-win-core-synch-l1-2-0.dll","api-ms-win-core-localization-l1-2-0.dll","api-ms-win-core-file-l2-1-0.dll","api-ms-win-core-timezone-l1-1-0.dll","VCRUNTIME140.dll","api-ms-win-crt-runtime-l1-1-0.dll"],"Microsoft Windows":["ntdll.dll","rsaenh.dll"],"Mozilla Corporation":["firefox.exe","xul.dll","nss3.dll","nssckbi.dll","freebl3.dll","softokn3.dll","lgpllibs.dll","mozglue.dll"]} MozCrashReason: MOZ_CRASH() Notes: FP(D00-L1100-W00001000-T000) DWrite? DWrite+ WR? WR- OMTP? OMTP+1 xpcom_runtime_abort(###!!! ABORT: file resource://gre/modules/addons/XPIProvider.jsm, line 2211) ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 4214526 ShutdownProgress: profile-change-teardown StartupCrash: 0 StartupTime: 1544185243 SystemMemoryUsePercentage: 72 TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86-64","buildId":"20181114214635","version":"63.0.3","vendor":"Mozilla","displayVersion":"63.0.3","platformVersion":"63.0.3","xpcomAbi":"x86_64-msvc","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":2942,"virtualMaxMB":8388608,"cpu":{"count":2,"cores":2,"vendor":"AuthenticAMD","family":15,"model":104,"stepping":2,"l2cacheKB":256,"l3cacheKB":null,"speedMHz":798,"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3"]},"os":{"name":"Windows_NT","version":"6.1","locale":"en-US","servicePackMajor":1,"servicePackMinor":0,"windowsBuildNumber":7601,"installYear":2018},"hdd":{"profile":{"model":"SAMSUNG HM121HI","revision":"LZ100-11"},"binary":{"model":"SAMSUNG HM121HI","revision":"LZ100-11"},"system":{"model":"SAMSUNG HM121HI","revision":"LZ100-11"}},"gfx":{"D2DEnabled":false,"DWriteEnabled":true,"ContentBackend":"Skia","adapters":[{"description":"ATI Radeon X1200 Series ","vendorID":"0x1002","deviceID":"0x791f","subsysID":"02061028","RAM":null,"driver":"atiumdag atiumdva atiumd64 atiumd6a atitmm64","driverVersion":"8.561.0.0","driverDate":"12-1-2008","GPUActive":true}],"monitors":[{"screenWidth":1280,"screenHeight":800,"refreshRate":60,"pseudoDisplay":false}],"features":{"compositor":"basic","gpuProcess":{"status":"available"},"wrQualified":{"status":"blocked"},"webrender":{"status":"unavailable"},"d3d11":{"status":"unavailable"},"d2d":{"status":"unavailable","version":"1.1"}}},"appleModelId":null,"isWow64":false},"settings":{"blocklistEnabled":true,"e10sEnabled":true,"e10sMultiProcesses":4,"telemetryEnabled":false,"locale":"en-US","update":{"channel":"release","enabled":true,"autoDownload":true},"userPrefs":{"browser.cache.disk.capacity":1048576,"browser.search.region":"BE","browser.search.widget.inNavBar":false,"browser.startup.homepage":"<user-set>","layers.acceleration.disabled":true,"privacy.trackingprotection.enabled":true,"privacy.donottrackheader.enabled":true},"sandbox":{"effectiveContentProcessLevel":5},"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":true,"attribution":{"campaign":"%2528not%2Bset%2529","content":"%2528not%2Bset%2529","medium":"referral","source":"www.google.be"},"defaultSearchEngine":"google","defaultSearchEngineData":{"name":"Google","loadPath":"jar:[app]/omni.ja!/google.xml","origin":"default","submissionURL":"https://www.google.com/search?q=&ie=utf-8&oe=utf-8&client=firefox-b"},"searchCohort":"nov17-1"},"profile":{"creationDate":17641},"addons":{"activeAddons":{"@windscribeff":{"version":"2.4.1","scope":1,"type":"extension","updateDay":17773,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Windscribe helps you mask your physical location, circumvent censorship, block ads and trackers on w","name":"Windscribe VPN","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17654,"signedState":2},"nortonsafesearch_ul_2@symantec.com":{"version":"3.1.0.20","scope":1,"type":"extension","updateDay":17818,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Search safely online by enabling Norton Safe Search as your default search provider for maximum prot","name":"Norton Safe Search","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17649,"signedState":2},"aushelper@mozilla.org":{"version":"2.0","scope":1,"type":"extension","updateDay":17852,"isSystem":true,"isWebExtension":false,"multiprocessCompatible":true,"blocklisted":false,"description":"Sets value(s) in the update url based on custom checks.","name":"Application Update Service Helper","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17613},"firefox@getpocket.com":{"version":"1.0.5","scope":1,"type":"extension","updateDay":17852,"isSystem":true,"isWebExtension":false,"multiprocessCompatible":true,"blocklisted":false,"description":"When you find something you want to view later, put it in Pocket.","name":"Pocket","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17613},"formautofill@mozilla.org":{"version":"1.0","scope":1,"type":"extension","updateDay":17834,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":null,"name":"Form Autofill","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17613},"onboarding@mozilla.org":{"version":"1.0","scope":1,"type":"extension","updateDay":17852,"isSystem":true,"isWebExtension":false,"multiprocessCompatible":true,"blocklisted":false,"description":"Photon onboarding","name":"Photon onboarding","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17613},"screenshots@mozilla.org":{"version":"33.0.0","scope":1,"type":"extension","updateDay":17834,"isSystem":true,"isWebExtension":false,"multiprocessCompatible":true,"blocklisted":false,"description":null,"name":"Firefox Screenshots","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17613},"webcompat@mozilla.org":{"version":"2.0.1","scope":1,"type":"extension","updateDay":17852,"isSystem":true,"isWebExtension":false,"multiprocessCompatible":true,"blocklisted":false,"description":"Urgent post-release fixes for web compatibility.","name":"Web Compat","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17613},"webcompat-reporter@mozilla.org":{"version":"1.0.0","scope":1,"type":"extension","updateDay":17852,"isSystem":true,"isWebExtension":false,"multiprocessCompatible":true,"blocklisted":false,"description":"Report site compatibility issues on webcompat.com.","name":"WebCompat Reporter","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":17773},"fxmonitor@mozilla.org":{"version":"2.8","scope":1,"type":"extension","updateDay":17854,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":tr

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP- in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most recent 7 - 10 crash reports, and copy them. Now go to the reply box and paste them in.

For more help on crash reports, see; https://support.mozilla.org/en-US/kb/firefox-crashes-asking-support