Здравствуйте знатоки.
Имеется imac 10.6.8 и ff 48.0.2
Чтобы обновить ff (новая версия не поддерживается) нужно обновить imac, но для этого у начальства нету средств. Браузер используется для входа в админку сайта, разрабы сделали что под другими не работает. Для админки требуется сертификат с авторизацией.
У Пользователя этот браузер начал периодически крашиться на различных сайтах. В безопасном режиме  краши продолжаются. Вот примерно что выдаёт:


скрытый текст
AdapterDeviceID: 0x0869
AdapterVendorID: 0x10de
AddonsShouldHaveBlockedE10s: 1
BuildID: 20160823121617
CrashTime: 1494488861
E10SCohort: disqualified-control
EMCheckCompatibility: true
EventLoopNestingLevel: 1
FramePoisonBase: 7ffffffff0dea000
FramePoisonSize: 4096
InstallTime: 1474455834
Notes: AdapterVendorID: 0x10de, AdapterDeviceID: 0x0869FP(D000-L10000-W00000000-T0100) GL Context? GL Context+
ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
ProductName: Firefox
ReleaseChannel: release
SafeMode: 1
SecondsSinceLastCrash: 736
StartupTime: 1494488835
TelemetryEnvironment: 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rollout of Firefox multi-process feature.","name":"Multi-process staged rollout","userDisabled":false,"appDisabled":false,"version":"1.1","scope":1,"type":"extension","foreignInstall":false,"hasBinaryComponents":false,"installDay":16979,"updateDay":17037,"isSystem":true},"firefox@getpocket.com":{"blocklisted":false,"description":"When you find something you want to view later, put it in Pocket.","name":"Pocket","userDisabled":false,"appDisabled":false,"version":"1.0.4","scope":1,"type":"extension","foreignInstall":false,"hasBinaryComponents":false,"installDay":16979,"updateDay":17037,"isSystem":true},"loop@mozilla.org":{"blocklisted":false,"description":"Web sharing for Firefox","name":"Firefox Hello","userDisabled":false,"appDisabled":false,"version":"1.4.4","scope":1,"type":"extension","foreignInstall":false,"hasBinaryComponents":false,"installDay":16979,"updateDay":17037,"isSystem":true}},"theme":{},"activePlugins":[{"name":"Adobe Acrobat NPAPI Plug-in, Version 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веб-страницах.","blocklisted":false,"disabled":false,"clicktoplay":true,"mimeTypes":["audio/x-midi","audio/x-ac3","video/mp4","video/x-m4v","application/x-sdp","audio/amr","application/x-rtsp","image/tiff","video/3gpp2","image/jpeg2000","audio/mpeg","image/x-quicktime","audio/mpeg3","application/sdp","application/x-mpeg","image/x-macpaint","video/mpeg","video/x-msvideo","audio/aac","audio/x-gsm","video/sd-video","audio/x-caf","image/x-jpeg2000-image","audio/3gpp","audio/mp3","image/x-targa","video/avi","image/png","image/x-tiff","audio/mp4","image/jp2","audio/x-aiff","video/x-mpeg","video/3gpp","audio/x-mpeg","audio/x-aac","audio/mid","audio/3gpp2","audio/midi","audio/x-wav","audio/x-mp3","video/quicktime","audio/x-mpeg3","image/x-bmp","audio/ac3","image/pict","audio/x-m4p","audio/x-m4a","image/x-png","image/x-pict","image/x-sgi","audio/x-m4b","video/flc","audio/aiff","video/msvideo","audio/basic","image/jpeg2000-image","audio/wav","audio/vnd.qcelp"],"updateDay":15908},{"name":"Плагин апплета Java","version":"13.9.8","description":"Отображает содержимое апплета Java либо заполнитель, если Java не установлена.","blocklisted":false,"disabled":false,"clicktoplay":true,"mimeTypes":["application/x-java-applet;version=1.1.3","application/x-java-applet","application/x-java-applet;version=1.2.2","application/x-java-applet;version=1.5","application/x-java-vm","application/x-java-applet;version=1.3.1","application/x-java-applet;version=1.3","application/x-java-applet;version=1.1.2","application/x-java-applet;version=1.1","application/x-java-vm-npruntime","application/x-java-applet;version=1.2.1","application/x-java-applet;jpi-version=1.6.0_65","application/x-java-applet;version=1.4.2","application/x-java-applet;version=1.6","application/x-java-applet;version=1.4","application/x-java-applet;version=1.1.1","application/x-java-applet;version=1.2"],"updateDay":15986},{"name":"SharePoint Browser Plug-in","version":"14.6.4","description":"Microsoft Office for Mac SharePoint Browser Plug-in","blocklisted":false,"disabled":false,"clicktoplay":true,"mimeTypes":["application/x-sharepoint","application/x-sharepoint-protocolhandler"],"updateDay":16913},{"name":"Shockwave Flash","version":"25.0.0.148","description":"Shockwave Flash 25.0 r0","blocklisted":false,"disabled":false,"clicktoplay":false,"mimeTypes":["application/x-shockwave-flash","application/futuresplash"],"updateDay":17274}],"activeGMPlugins":{"gmp-gmpopenh264":{"version":"1.6","userDisabled":false,"applyBackgroundUpdates":1},"gmp-widevinecdm":{"version":null,"userDisabled":false,"applyBackgroundUpdates":1}},"activeExperiment":{},"persona":null}}
Theme: classic/1.0
Throttleable: 1
URL:
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UptimeTS: 26.44600347
Vendor: Mozilla
Version: 48.0.2
useragent_locale: ru

хотелось бы узнать из-за чего может крашиться? или всё таки обновления нужны?

правила: п. 2.1 и 2.2
FAQ - Починка браузера и поиск