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When I open firefox it opens all tabs from previous session. How do I turn this off?

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I have already changed the setting to "When Firefox starts: Show my home page" and I have checked for the user.js file as suggested in similar threads, but do not have that file.

I have already changed the setting to "When Firefox starts: Show my home page" and I have checked for the user.js file as suggested in similar threads, but do not have that file.

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Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0

More Information

Wesley Branton
  • Top 10 Contributor
688 solutions 5478 answers

You need to set your homepage from the Firefox options using the steps found in this Mozilla support article:

You need to set your homepage from the Firefox options using the steps found in this Mozilla support article: *[[How to set the home page]]

Question owner

I already have my homepage set. Firefox seems to be ignoring those settings.

I already have my homepage set. Firefox seems to be ignoring those settings.
cor-el
  • Top 10 Contributor
  • Moderator
17673 solutions 159870 answers

Can you post your Troubleshooting information from the about:support page?

Can you post your Troubleshooting information from the about:support page? *https://support.mozilla.org/kb/Using+the+Troubleshooting+Information+page

Question owner

Application Basics


Name: Firefox Version: 45.0 Build ID: 20160303134406 Update Channel: release User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0 Multiprocess Windows: 0/1 (default: false) Safe Mode: false

Crash Reports for the Last 3 Days


All Crash Reports

Extensions


Name: Firefox Hello Beta Version: 0.1 Enabled: true ID: loop@mozilla.org

Name: IDS_SS_NAME Version: IDS_SS_VERSION Enabled: false ID: {D19CA586-DD6C-4a0a-96F8-14644F340D60}

Graphics


Adapter Description: Intel(R) HD Graphics 5500 Adapter Drivers: igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32 Adapter RAM: Unknown Asynchronous Pan/Zoom: none Device ID: 0x1616 Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.17568) Driver Date: 10-9-2014 Driver Version: 10.18.10.3977 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) Subsys ID: 062b1028 Supports Hardware H264 Decoding: Yes Vendor ID: 0x8086 WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 5500 Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote: true AzureCanvasBackend: direct2d 1.1 AzureContentBackend: direct2d 1.1 AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0

Important Modified Preferences


browser.cache.disk.capacity: 358400 browser.cache.disk.filesystem_reported: 1 browser.cache.disk.smart_size.first_run: false browser.cache.frecency_experiment: 1 browser.download.importedFromSqlite: true browser.download.manager.closeWhenDone: true browser.download.useDownloadDir: false browser.places.smartBookmarksVersion: 7 browser.search.update: false browser.sessionstore.resume_from_crash: false browser.sessionstore.upgradeBackup.latestBuildID: 20160303134406 browser.startup.homepage: https://insideportal.dell.com/Pages/home.aspx browser.startup.homepage_override.mstone: ignore browser.tabs.warnOnClose: false dom.apps.reset-permissions: true dom.mozApps.used: true extensions.lastAppVersion: 45.0 gfx.crash-guard.d3d11layers.appVersion: 45.0 gfx.crash-guard.d3d11layers.deviceID: 0x1616 gfx.crash-guard.d3d11layers.driverVersion: 10.18.10.3977 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: 2 gfx.crash-guard.status.glcontext: 2 gfx.direct3d.last_used_feature_level_idx: 0 media.gmp-eme-adobe.abi: x86-msvc-x64 media.gmp-eme-adobe.lastUpdate: 1460059241 media.gmp-eme-adobe.version: 15 media.gmp-gmpopenh264.abi: x86-msvc-x64 media.gmp-gmpopenh264.lastUpdate: 1460059242 media.gmp-gmpopenh264.version: 1.5.3 media.gmp-manager.buildID: 20160303134406 media.gmp-manager.lastCheck: 1460059241 media.hardware-video-decoding.failed: false network.automatic-ntlm-auth.trusted-uris: .dell.com network.cookie.prefsMigrated: true network.negotiate-auth.delegation-uris: http://salesedge.dell.com,http://salesedge.ins.dell.com,http://salesedge,http://salesedge.us.dell.com network.negotiate-auth.trusted-uris: http://salesedge.dell.com,http://salesedge.ins.dell.com,http://salesedge,http://salesedge.us.dell.com network.predictor.cleaned-up: true places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.sanitize.migrateFx3Prefs: true services.sync.declinedEngines:

Important Locked Preferences


JavaScript


Incremental GC: true

Accessibility


Activated: false Prevent Accessibility: 0

Library Versions


NSPR Expected minimum version: 4.12 Version in use: 4.12

NSS Expected minimum version: 3.21.1 Basic ECC Version in use: 3.21.1 Basic ECC

NSSSMIME Expected minimum version: 3.21.1 Basic ECC Version in use: 3.21.1 Basic ECC

NSSSSL Expected minimum version: 3.21.1 Basic ECC Version in use: 3.21.1 Basic ECC

NSSUTIL Expected minimum version: 3.21.1 Version in use: 3.21.1

Experimental Features


Application Basics ------------------ Name: Firefox Version: 45.0 Build ID: 20160303134406 Update Channel: release User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0 Multiprocess Windows: 0/1 (default: false) Safe Mode: false Crash Reports for the Last 3 Days --------------------------------- All Crash Reports Extensions ---------- Name: Firefox Hello Beta Version: 0.1 Enabled: true ID: loop@mozilla.org Name: IDS_SS_NAME Version: IDS_SS_VERSION Enabled: false ID: {D19CA586-DD6C-4a0a-96F8-14644F340D60} Graphics -------- Adapter Description: Intel(R) HD Graphics 5500 Adapter Drivers: igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32 Adapter RAM: Unknown Asynchronous Pan/Zoom: none Device ID: 0x1616 Direct2D Enabled: true DirectWrite Enabled: true (6.2.9200.17568) Driver Date: 10-9-2014 Driver Version: 10.18.10.3977 GPU #2 Active: false GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC) Subsys ID: 062b1028 Supports Hardware H264 Decoding: Yes Vendor ID: 0x8086 WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 5500 Direct3D11 vs_5_0 ps_5_0) windowLayerManagerRemote: true AzureCanvasBackend: direct2d 1.1 AzureContentBackend: direct2d 1.1 AzureFallbackCanvasBackend: cairo AzureSkiaAccelerated: 0 Important Modified Preferences ------------------------------ browser.cache.disk.capacity: 358400 browser.cache.disk.filesystem_reported: 1 browser.cache.disk.smart_size.first_run: false browser.cache.frecency_experiment: 1 browser.download.importedFromSqlite: true browser.download.manager.closeWhenDone: true browser.download.useDownloadDir: false browser.places.smartBookmarksVersion: 7 browser.search.update: false browser.sessionstore.resume_from_crash: false browser.sessionstore.upgradeBackup.latestBuildID: 20160303134406 browser.startup.homepage: https://insideportal.dell.com/Pages/home.aspx browser.startup.homepage_override.mstone: ignore browser.tabs.warnOnClose: false dom.apps.reset-permissions: true dom.mozApps.used: true extensions.lastAppVersion: 45.0 gfx.crash-guard.d3d11layers.appVersion: 45.0 gfx.crash-guard.d3d11layers.deviceID: 0x1616 gfx.crash-guard.d3d11layers.driverVersion: 10.18.10.3977 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: 2 gfx.crash-guard.status.glcontext: 2 gfx.direct3d.last_used_feature_level_idx: 0 media.gmp-eme-adobe.abi: x86-msvc-x64 media.gmp-eme-adobe.lastUpdate: 1460059241 media.gmp-eme-adobe.version: 15 media.gmp-gmpopenh264.abi: x86-msvc-x64 media.gmp-gmpopenh264.lastUpdate: 1460059242 media.gmp-gmpopenh264.version: 1.5.3 media.gmp-manager.buildID: 20160303134406 media.gmp-manager.lastCheck: 1460059241 media.hardware-video-decoding.failed: false network.automatic-ntlm-auth.trusted-uris: .dell.com network.cookie.prefsMigrated: true network.negotiate-auth.delegation-uris: http://salesedge.dell.com,http://salesedge.ins.dell.com,http://salesedge,http://salesedge.us.dell.com network.negotiate-auth.trusted-uris: http://salesedge.dell.com,http://salesedge.ins.dell.com,http://salesedge,http://salesedge.us.dell.com network.predictor.cleaned-up: true places.history.expiration.transient_current_max_pages: 104858 plugin.disable_full_page_plugin_for_types: application/pdf plugin.importedState: true privacy.sanitize.migrateFx3Prefs: true services.sync.declinedEngines: Important Locked Preferences ---------------------------- JavaScript ---------- Incremental GC: true Accessibility ------------- Activated: false Prevent Accessibility: 0 Library Versions ---------------- NSPR Expected minimum version: 4.12 Version in use: 4.12 NSS Expected minimum version: 3.21.1 Basic ECC Version in use: 3.21.1 Basic ECC NSSSMIME Expected minimum version: 3.21.1 Basic ECC Version in use: 3.21.1 Basic ECC NSSSSL Expected minimum version: 3.21.1 Basic ECC Version in use: 3.21.1 Basic ECC NSSUTIL Expected minimum version: 3.21.1 Version in use: 3.21.1 Experimental Features ---------------------
cor-el
  • Top 10 Contributor
  • Moderator
17673 solutions 159870 answers

Thanks.

You can check for problems with the sessionstore.js file in the profile folder that stores session data. When sessionstore.js is deleted you lose pinned tabs and Tab Groups and open tabs and you will have to recreate them, so if necessary make a note or bookmark them.

You can use this button to go to the current Firefox profile folder:


Some information about session restore:

Firefox uses the sessionstore.js file in the profile folder to store session data, but this file is only present when Firefox is closed. The sessionstore.js file is created from recovery.js when you close Firefox and is removed and copied to previous.js when you start Firefox to make is possible to restore the session at any time.

You will normally find these files in the sessionstore-backups folder:

previous.js (cleanBackup: copy of sessionstore.js from previous session that was loaded successfully)
recovery.js (latest version of the sessionstore written during runtime)
recovery.bak (previous version of the sessionstore written during runtime)
upgrade.js-<build_id> (backup created during an upgrade of Firefox)

You can copy a file from the sessionstore-backups folder to the main profile and rename the file to sessionstore.js to replace the current file (make a backup copy of the current sessionstore.js).

See also:

Thanks. You can check for problems with the sessionstore.js file in the profile folder that stores session data. When sessionstore.js is deleted you lose pinned tabs and Tab Groups and open tabs and you will have to recreate them, so if necessary make a note or bookmark them. You can use this button to go to the current Firefox profile folder: *Help > Troubleshooting Information > Profile Directory:<br>Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder *http://kb.mozillazine.org/Profile_folder_-_Firefox ---- Some information about session restore: Firefox uses the sessionstore.js file in the profile folder to store session data, but this file is only present when Firefox is closed. The sessionstore.js file is created from recovery.js when you close Firefox and is removed and copied to previous.js when you start Firefox to make is possible to restore the session at any time. You will normally find these files in the sessionstore-backups folder: previous.js (cleanBackup: copy of sessionstore.js from previous session that was loaded successfully) recovery.js (latest version of the sessionstore written during runtime) recovery.bak (previous version of the sessionstore written during runtime) upgrade.js-<build_id> (backup created during an upgrade of Firefox) You can copy a file from the sessionstore-backups folder to the main profile and rename the file to sessionstore.js to replace the current file (make a backup copy of the current sessionstore.js). See also: *http://www.ghacks.net/2014/06/27/mozilla-launches-improved-session-restore-firefox-33/