What's your computer system and Firefox version?

If you can't get Firefox to open, you will have to do this the hard way.

https://support.mozilla.org/en-US/kb/mozillacrashreporter Open the file browser / explorer on your computer. Note: You may have to enable Show Hidden Folders / Files. Enter this in the address bar;

Windows: %APPDATA%\Mozilla\Firefox\Crash Reports\submitted Win 7/Vista: C:\Users\<username>\AppData\Roaming\Mozilla\Firefox\Crash Reports\submitted Win XP/2000: C:\Documents and Settings\<username>\Application Data\Mozilla\Firefox\Crash Reports\submitted

Mac OS: /Users/<username>/Library/Application Support/Firefox/Crash Reports/submitted Linux: /home/<username>/.mozilla/firefox/Crash Reports/submitted

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

Copy the most recent 5-7 File Names in the folder. Post the information in the reply box.

Computer os mentioned in original post. I just downloaded the most recent Mac version. Will check specs on that later.

I'll likely just scrap Firefox and move to Chrome. Not much reason to hassle with it.

Were you able to get the crash report ID's requested above?

No--that path doesn't lead me anywhere. I don't have a "Firefox" folder in my Application Support folder. I do have a "Crash Reporter" folder but there's nothing recent there. All I have otherwise is this, from the Mozilla Crash Reporter:

AdapterDeviceID: 0x6740 AdapterVendorID: 0x1002 BuildID: 20181114214635 ContentSandboxCapable: 1 ContentSandboxLevel: 3 CrashTime: 1543433421 DOMIPCEnabled: 1 EventLoopNestingLevel: 1 FramePoisonBase: 9223372036600930304 FramePoisonSize: 4096 InstallTime: 1542465375 Notes: FP(D00-L1000-W00000000-T000) WR? WR- OMTP? OMTP+3 ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 415 StartupCrash: 0 StartupTime: 1543433415 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-gcc3","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":4096,"virtualMaxMB":null,"cpu":{"count":4,"cores":4,"vendor":"GenuineIntel","family":6,"model":42,"stepping":7,"l2cacheKB":256,"l3cacheKB":6144,"speedMHz":2700,"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2","hasAVX","hasAES"]},"os":{"name":"Darwin","version":"16.7.0","locale":"en-US"},"hdd":{"profile":{"model":null,"revision":null},"binary":{"model":null,"revision":null},"system":{"model":null,"revision":null}},"gfx":{"D2DEnabled":null,"DWriteEnabled":null,"ContentBackend":"Skia","adapters":[{"description":null,"vendorID":"0x1002","deviceID":"0x6740","subsysID":null,"RAM":null,"driver":null,"driverVersion":null,"driverDate":null,"GPUActive":true}],"monitors":[{"screenWidth":1920,"screenHeight":1080,"scale":1}],"features":{"compositor":"none","gpuProcess":{"status":"unused"},"wrQualified":{"status":"blocked"},"webrender":{"status":"opt-in"}}},"appleModelId":"iMac12,1"},"settings":{"blocklistEnabled":true,"e10sEnabled":true,"e10sMultiProcesses":4,"telemetryEnabled":false,"locale":"en-US","update":{"channel":"release","enabled":true,"autoDownload":true},"userPrefs":{"browser.search.widget.inNavBar":false},"sandbox":{"effectiveContentProcessLevel":3},"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":null},"profile":{}} ThreadIdNameMapping: 5:"Gecko_IOThread",6:"Timer",7:"Socket Thread",8:"JS Watchdog",11:"JS Helper",9:"JS Helper",10:"JS Helper",12:"JS Helper",15:"Cache2 I/O",16:"Cookie",18:"GMPThread",19:"Compositor",20:"VRListener",22:"ImgDecoder #1",23:"ImageIO",24:"IPDL Background",27:"DOM Worker",30:"StyleThread#1",29:"StyleThread#0",31:"StyleThread#2",33:"StreamTrans #13",33:"ImageBridgeChild", Throttleable: 1 UptimeTS: 7.06878027 Vendor: Mozilla Version: 63.0.3 useragent_locale: en-US

This could be a problem with the fbplugin (Facebook photo uploader) in the "Internet Plug-Ins" folder.

• [/questions/1238157] Firefox crashes because of the fbplugin plugin

Boom! Removed it and all's well. Weird. And thanks!