Hi PcRepairGuru.

The browser performance with larger number of tabs open highly depends on your PC hardware. Have you tried to Refresh Firefox - reset add-ons and settings or setup a new profile?

If so with no effect, you might want to try some add-on for auto (un)loading tabs, like UnloadTab, Auto Unload Tab, Load Tabs Progressively Fixed, Max Loaded Tabs or similar.

Hope this helps.

Regards, Michal

Sorry to hear about the crashes. If you are getting the Mozilla Crash Reporter form, your Firefox may have logged some data that would help track down the cause of the problem. You can submit that data to Mozilla and share it with forum volunteers to see whether it points to the solution. Please check the support article "Firefox crashes - asking for support" for steps to get those crash report IDs from the about:crashes page, and then post some of the recent ones here.

The hardware I have is Windows 10 Home 64-bit CPU Intel Core i7 5820K @ 3.30GHz RAM 16.0GB Motherboard ASUSTeK COMPUTER INC. X99-A/USB 3.1 (SOCKET 2011) Graphics VE247 (1920x1080@60Hz) 3072MB ATI AMD Radeon R9 200 / HD 7900 Series (XFX Pine Group) Storage 894GB SanDisk SDSSDXPS960G The hardware is not the issue here.

Application Basics

Name: Firefox Version: 44.0.2 Build ID: 20160210153822 Update Channel: release User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0 Multiprocess Windows: 0/1 (default: false) Safe Mode: false

Crash Reports for the Last 3 Days

Report ID: bp-79186507-102f-4151-8b23-7d5122160310 Submitted: 15 hours ago

Report ID: bp-09d10b9a-a239-4f53-8ecc-028d12160310 Submitted: 16 hours ago

Report ID: bp-1c08d814-1fcf-49e4-b811-94d9e2160310 Submitted: 19 hours ago

Report ID: bp-8d7b71c6-81d0-4172-80a6-ead932160309 Submitted: 2 days ago

All Crash Reports (including 2 pending crashes in the given time range)

Extensions

Name: Adblock Plus Version: 2.7.2 Enabled: true ID: {d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}

Name: Skype Version: 8.0.0.9103 Enabled: true ID: {82AF8DCA-6DE9-405D-BD5E-43525BDAD38A}

Name: YouTube High Definition Version: 44.2 Enabled: true ID: {7b1bf0b6-a1b9-42b0-b75d-252036438bdc}

Graphics

Adapter Description: AMD Radeon R9 200 / HD 7900 Series Adapter Drivers: aticfx64 aticfx64 aticfx64 amdxc64 aticfx32 aticfx32 aticfx32 amdxc32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64 Adapter RAM: 3072 Asynchronous Pan/Zoom: none Device ID: 0x6798 Direct2D Enabled: true DirectWrite Enabled: true (10.0.10240.16430) Driver Date: 11-17-2015 Driver Version: 15.300.1025.0 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) Subsys ID: 32121682 Supports Hardware H264 Decoding: No; DXVA2D3D9 crashes detected in the past Vendor ID: 0x1002 WebGL Renderer: Google Inc. -- ANGLE (AMD Radeon R9 200 / HD 7900 Series Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote: true AzureCanvasBackend: direct2d 1.1 AzureContentBackend: direct2d 1.1 AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0 (#0) Error: DXVA2D3D9 video decoding is disabled due to a previous crash. (#1) Error: DXVA2D3D9 video decoding is disabled due to a previous crash. (#2) Error: DXVA2D3D9 video decoding is disabled due to a previous crash. (#3) Error: DXVA2D3D9 video decoding is disabled due to a previous crash.

Important Modified Preferences

accessibility.typeaheadfind: true accessibility.typeaheadfind.flashBar: 0 browser.cache.disk.capacity: 358400 browser.cache.disk.filesystem_reported: 1 browser.cache.disk.hashstats_reported: 1 browser.cache.disk.smart_size.first_run: false browser.cache.disk.smart_size.use_old_max: false browser.cache.frecency_experiment: 1 browser.download.importedFromSqlite: true browser.download.manager.alertOnEXEOpen: true browser.places.smartBookmarksVersion: 7 browser.search.suggest.enabled: false browser.sessionstore.upgradeBackup.latestBuildID: 20160210153822 browser.startup.homepage: http://google.com browser.startup.homepage_override.buildID: 20160210153822 browser.startup.homepage_override.mstone: 44.0.2 dom.apps.reset-permissions: true dom.event.clipboardevents.enabled: false dom.ipc.plugins.flash.disable-protected-mode: true dom.mozApps.used: true extensions.lastAppVersion: 44.0.2 font.internaluseonly.changed: false gfx.crash-guard.d3d11layers.appVersion: 44.0.2 gfx.crash-guard.d3d11layers.deviceID: 0x6798 gfx.crash-guard.d3d11layers.driverVersion: 15.300.1025.0 gfx.crash-guard.d3d11layers.feature-d2d: true gfx.crash-guard.d3d11layers.feature-d3d11: true gfx.crash-guard.glcontext.gfx.driver-init.direct3d11-angle: true gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle: true gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-d3d11: false gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-force-warp: false gfx.crash-guard.glcontext.gfx.driver-init.webgl-angle-try-d3d11: true gfx.crash-guard.status.d3d11layers: 2 gfx.crash-guard.status.d3d9video: 3 gfx.crash-guard.status.glcontext: 2 gfx.direct3d.last_used_feature_level_idx: 0 gfx.driver-init.appVersion: 42.0 gfx.driver-init.deviceID: 0x6798 gfx.driver-init.driverVersion: 15.300.1025.0 gfx.driver-init.feature-d2d: true gfx.driver-init.feature-d3d11: true gfx.driver-init.status: 2 media.gmp-eme-adobe.abi: x86-msvc media.gmp-eme-adobe.enabled: false media.gmp-eme-adobe.lastUpdate: 1447532055 media.gmp-eme-adobe.version: 15 media.gmp-gmpopenh264.abi: x86-msvc-x64 media.gmp-gmpopenh264.lastUpdate: 1453870655 media.gmp-gmpopenh264.version: 1.5.3 media.gmp-manager.buildID: 20160210153822 media.gmp-manager.lastCheck: 1457569738 media.hardware-video-decoding.failed: false media.webrtc.debug.aec_log_dir: C:\Users\Admin\AppData\Local\Temp media.webrtc.debug.log_file: C:\Users\Admin\AppData\Local\Temp\WebRTC.log media.youtube-ua.override.to: 43 network.auth.allow-subresource-auth: 2 network.cookie.prefsMigrated: true network.predictor.cleaned-up: true places.database.lastMaintenance: 1457297369 places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true plugin.state.flash: 1 plugin.state.npfoxitreaderplugin: 0 plugin.state.npintelwebapiipt: 0 plugin.state.npintelwebapiupdater: 0 plugin.state.npunity3d: 0 plugin.state.npvlc: 0 print.printer_EPSON_L355_Series.print_bgcolor: false print.printer_EPSON_L355_Series.print_bgimages: false print.printer_EPSON_L355_Series.print_colorspace: print.printer_EPSON_L355_Series.print_command: print.printer_EPSON_L355_Series.print_downloadfonts: false print.printer_EPSON_L355_Series.print_duplex: 1515870810 print.printer_EPSON_L355_Series.print_edge_bottom: 0 print.printer_EPSON_L355_Series.print_edge_left: 0 print.printer_EPSON_L355_Series.print_edge_right: 0 print.printer_EPSON_L355_Series.print_edge_top: 0 print.printer_EPSON_L355_Series.print_evenpages: true print.printer_EPSON_L355_Series.print_footercenter: print.printer_EPSON_L355_Series.print_footerleft: &PT print.printer_EPSON_L355_Series.print_footerright: &D print.printer_EPSON_L355_Series.print_headercenter: print.printer_EPSON_L355_Series.print_headerleft: &T print.printer_EPSON_L355_Series.print_headerright: &U print.printer_EPSON_L355_Series.print_in_color: true print.printer_EPSON_L355_Series.print_margin_bottom: 0.5 print.printer_EPSON_L355_Series.print_margin_left: 0.5 print.printer_EPSON_L355_Series.print_margin_right: 0.5 print.printer_EPSON_L355_Series.print_margin_top: 0.5 print.printer_EPSON_L355_Series.print_oddpages: true print.printer_EPSON_L355_Series.print_orientation: 0 print.printer_EPSON_L355_Series.print_page_delay: 50 print.printer_EPSON_L355_Series.print_paper_data: 9 print.printer_EPSON_L355_Series.print_paper_height: 11.00 print.printer_EPSON_L355_Series.print_paper_name: print.printer_EPSON_L355_Series.print_paper_size_type: 0 print.printer_EPSON_L355_Series.print_paper_size_unit: 1 print.printer_EPSON_L355_Series.print_paper_width: 8.50 print.printer_EPSON_L355_Series.print_plex_name: print.printer_EPSON_L355_Series.print_resolution: 1515870810 print.printer_EPSON_L355_Series.print_resolution_name: print.printer_EPSON_L355_Series.print_reversed: false print.printer_EPSON_L355_Series.print_scaling: 1.00 print.printer_EPSON_L355_Series.print_shrink_to_fit: true print.printer_EPSON_L355_Series.print_to_file: false print.printer_EPSON_L355_Series.print_unwriteable_margin_bottom: 0 print.printer_EPSON_L355_Series.print_unwriteable_margin_left: 0 print.printer_EPSON_L355_Series.print_unwriteable_margin_right: 0 print.printer_EPSON_L355_Series.print_unwriteable_margin_top: 0 privacy.cpd.cookies: false privacy.cpd.offlineApps: true privacy.cpd.sessions: false privacy.cpd.siteSettings: true privacy.sanitize.migrateClearSavedPwdsOnExit: true privacy.sanitize.migrateFx3Prefs: true security.ssl.errorReporting.automatic: true storage.vacuum.last.index: 1 storage.vacuum.last.places.sqlite: 1455992264 ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

Important Locked Preferences

JavaScript

Incremental GC: true

Accessibility

Activated: false Prevent Accessibility: 0

Library Versions

NSPR Expected minimum version: 4.11 Version in use: 4.11

NSS Expected minimum version: 3.21 Basic ECC Version in use: 3.21 Basic ECC

NSSSMIME Expected minimum version: 3.21 Basic ECC Version in use: 3.21 Basic ECC

NSSSSL Expected minimum version: 3.21 Basic ECC Version in use: 3.21 Basic ECC

NSSUTIL Expected minimum version: 3.21 Version in use: 3.21

Experimental Features

I think the problem might go with the new profile but then I'm missing user names, password forum details, addons and the tabs....unless theres a software that saves all of them

Thank you for the crash reports. All of them mention rapportutil.dll, which is probably the cause of all your trouble. If you cannot remove it (need, to use it), I would suggest to contact Trusteer support https://trusteer.secure.force.com/PKB/articles/en_US/FAQ/browser-crashes, as mentioned in this topic.

In all four of those crash reports, Firefox died as or just after running components of Trusteer Rapport, the security software often recommended and sometimes required by various financial institutions.

Over the years, there have been issues between Firefox and Rapport from time to time. Usually Rapport gets updated and that resolves it.

Since your crashes come late in your session, relative to other crashes I've seen with Rapport, this does not appear to be the usual severe compatibility problem fixed by an update. Still, you might check on that.

Unfortunately, I don't have enough experience reading the guts of crash reports to know more than what I've said so far.

I have shunt-down the Trusteer Rapport and the problem went away. Now just to see if they have done any update to sort the problem ....thank you