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Firefox 26.0 doesn't restore tabs from previous session.


Same problem as they had with 23.0.1; I had no idea how to do some of the suggestions noted there, ie, go to about; config...going to About from the Help dropdown doesn't give that option - now you know who you're dealing with when giving suggestions. Thanks, I'd hate to have to use Chrome

Chosen solution

Hello there, try to re install firefox maybe it will fix the error i hope so....

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.9 r900
  • Next Generation Java Plug-in 10.45.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • iTunes Detector Plug-in
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.8
  • ActiveTouch General Plugin Container Version 105
  • Coupons, Inc. Coupon Printer
  • Citrix Online App Detector Plugin
  • Intel web components for Intel® Identity Protection Technology
  • Intel web components updater - Installs and updates the Intel web components


  • Firefox 26.0
  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0
  • Support URL: https://support.mozilla.org/1/firefox/26.0/WINNT/en-US/


  • Ads Removal 1.0.0 (adsremoval@adsremoval.net)
  • DoNotTrackMe: Online Privacy Protection 3.1.1030 (donottrackplus@abine.com)
  • GetSavin 5.0 (getsavin@jetpack)
  • Lightbeam 1.0.2 (jid1-F9UJ2thwoAm5gQ@jetpack)
  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • avast! Online Security 9.0.2006.53 (wrc@avast.com) (Inactive)


  • incrementalGCEnabled: True


  • adapterDescription: Intel(R) HD Graphics 4000
  • adapterDescription2:
  • adapterDeviceID: 0x0166
  • adapterDeviceID2:
  • adapterDrivers: igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32
  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterVendorID: 0x8086
  • adapterVendorID2:
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.2.9200.16571
  • driverDate: 2-14-2012
  • driverDate2:
  • driverVersion:
  • driverVersion2:
  • info: {u'AzureCanvasBackend': u'direct2d', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d', u'AzureSkiaAccelerated': 0}
  • isGPU2Active: False
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • webglRenderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 4000 Direct3D9Ex vs_3_0 ps_3_0)
  • windowLayerManagerRemote: False
  • windowLayerManagerType: Direct3D 10

Modified Preferences

  • accessibility.typeaheadfind.flashBar: 0
  • browser.cache.disk.capacity: 128000
  • browser.cache.disk.smart_size.enabled: False
  • browser.cache.disk.smart_size.first_run: False
  • browser.cache.disk.smart_size.use_old_max: False
  • browser.cache.disk.smart_size_cached_value: 358400
  • browser.places.smartBookmarksVersion: 4
  • browser.search.param.yahoo-fr: chr-greentree_ff&ilc=12&type=800236
  • browser.search.useDBForOrder: True
  • browser.sessionstore.max_tabs_undo: 0
  • browser.sessionstore.max_windows_undo: 0
  • browser.sessionstore.restore_on_demand: False
  • browser.sessionstore.resume_from_crash: False
  • browser.sessionstore.resume_session_once: False
  • browser.sessionstore.upgradeBackup.latestBuildID: 20131205075310
  • browser.startup.homepage: https://www.google.com/
  • browser.startup.homepage_override.buildID: 20131205075310
  • browser.startup.homepage_override.mstone: 26.0
  • dom.disable_open_during_load: False
  • dom.mozApps.used: True
  • dom.w3c_touch_events.expose: True
  • extensions.lastAppVersion: 26.0
  • font.name.serif.x-western: Arial
  • gfx.direct3d.last_used_feature_level_idx: 0
  • gfx.direct3d.prefer_10_1: True
  • network.cookie.prefsMigrated: True
  • network.protocol-handler.warn-external.dnupdate: False
  • places.database.lastMaintenance: 1387118310
  • places.history.expiration.transient_current_max_pages: 104382
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • plugin.importedState: True
  • plugin.state.npwlpg: 0
  • privacy.popups.showBrowserMessage: False
  • privacy.sanitize.migrateFx3Prefs: True
  • security.csp.enable: False
  • security.OCSP.enabled: 0
  • security.warn_viewing_mixed: False
  • storage.vacuum.last.index: 1
  • storage.vacuum.last.places.sqlite: 1385739579


  • User JS: Yes
  • Accessibility: Yes
sahilnmmt 6 solutions 37 answers

Chosen Solution

Hello there, try to re install firefox maybe it will fix the error i hope so....

Modified by sahilnmmt

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Question owner

That did it....thanks sahilnmmt

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sahilnmmt 6 solutions 37 answers

Hi lwood , thanks for choosing mozilla Firefox ....if you have any further qurries please let us know .....we always help you in our best.

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  • Top 10 Contributor
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10761 solutions 96861 answers

Note that your System Details List shows a lot of browser.sessionstore.* that didn't had the default value and that you also had a user.js file that automatically initializes some prefs on each Firefox start.

  1. browser.sessionstore.max_tabs_undo: 0
  2. browser.sessionstore.max_windows_undo: 0
  3. browser.sessionstore.restore_on_demand: False
  4. browser.sessionstore.resume_from_crash: False
  5. browser.sessionstore.resume_session_once: False

See also:

So if it happens again then keep an eye on your prefs.

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Question owner

I thought it worked after re-install, but not when I shut down the laptop; I don't get the config stuff, not my bag....really too bad as I've used this browser darn near it's inception and have never had an issue like this.

Nothing is forever I guess, now to fight my way through learning a new one

Thanks for the help

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  • Top 10 Contributor
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10761 solutions 96861 answers

The about:config is not too difficult once you get used to it and in your case you may only have to check the sessionstore prefs.
So you can open the about:config page via the location bar and paste sessionstore in the search bar at the top of this page.

You can attach a screenshot of this filtered list then we can see if the prefs have their default value and not user set (bold).

Use a compressed image type like PNG or JPG to save the screenshot.

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Question owner

Thanks for trying to help, one of these versions will eventually allow me to save all the tabs when I shut down the PC, until them I'm stuck with Chrome.

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  • Top 10 Contributor
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10761 solutions 96861 answers

you can try to create a new profile as a test to check if your current profile is causing the problems.

See "Creating a profile":

If the new profile works then you can transfer some files from an existing profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over the problem.

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