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My browser suddenly always opens on the page it was on when it was shut down last and uses tabs even though I have them turned off. I have tried reinstalling.

Posted

I have my browser set to open on comcast.net webpage and to never use tabs. I have been using firefox for years and am very familiar with it. Suddenly it has started opening on the last page it was on when shut down, and has started using tabs. When I delete Firefox from my computer, it still remembers all my settings. I had this problem once before years ago and ended up having to wipe my entire drive to fix it. I would like to avoid a drive wipe this time. I need to know how to get ALL of the browsers information deleted from the registry so I can get a truly fresh install. And yes, I have tried all the normal avenues and am pretty computer savvy. Please help before I go nuts. I am running the most recent version, but going back to older versions didn't help either. Thanks.

Bob Smith

I have my browser set to open on comcast.net webpage and to never use tabs. I have been using firefox for years and am very familiar with it. Suddenly it has started opening on the last page it was on when shut down, and has started using tabs. When I delete Firefox from my computer, it still remembers all my settings. I had this problem once before years ago and ended up having to wipe my entire drive to fix it. I would like to avoid a drive wipe this time. I need to know how to get ALL of the browsers information deleted from the registry so I can get a truly fresh install. And yes, I have tried all the normal avenues and am pretty computer savvy. Please help before I go nuts. I am running the most recent version, but going back to older versions didn't help either. Thanks. Bob Smith

Chosen solution

Sometimes external software will create or update an optional settings file named user.js. For some reason, one of the things that often shows up in there is a preference to restore your previous session just once. However, because Firefox uses user.js to override your normal settings every time it starts, that then turns into a permanent change.

Your More System Details (next to your post) shows that you have a user.js file. To check what's in it and/or remove it, try this support article: How to fix preferences that won't save.

Note that by default, Windows hides your Firefox profile folder from search and from easy browsing in Windows Explorer. You can access the folder from within Firefox using either

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

In the first table on the page, click the "Show Folder" button. This should launch the folder in Windows Explorer.

Any luck?

Read this answer in context 1

Additional System Details

Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape 11.0.10
  • CANON iMAGE GATEWAY Album Plugin Utility Module for IJ
  • Google Update
  • Intel web components updater - Installs and updates the Intel web components
  • Intel web components for Intel® Identity Protection Technology
  • Next Generation Java Plug-in 10.13.2 for Mozilla browsers
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • NVIDIA 3D Vision plugin for Mozilla browsers
  • NPWLPG
  • Shockwave Flash 16.0 r0
  • Adobe Shockwave for Director Netscape plug-in, version 11.6.8.638
  • 5.1.30514.0

Application

  • Firefox 37.0
  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0
  • Support URL: https://support.mozilla.org/1/firefox/37.0/WINNT/en-US/

Extensions

  • Logitech SetPoint 6.5 ({F003DA68-8256-4b37-A6C4-350FA04494DF}) (Inactive)
  • Norton Toolbar 2014.7.10.26 ({2D3F3651-74B9-4795-BDEC-6DA2F431CB62}) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: NVIDIA GeForce GTX 660
  • adapterDescription2:
  • adapterDeviceID: 0x11c0
  • adapterDeviceID2:
  • adapterDrivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um
  • adapterDrivers2:
  • adapterRAM: 2048
  • adapterRAM2:
  • adapterSubsysID: 26623842
  • adapterSubsysID2:
  • adapterVendorID: 0x10de
  • adapterVendorID2:
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.2.9200.16571
  • driverDate: 3-4-2014
  • driverDate2:
  • driverVersion: 9.18.13.3523
  • driverVersion2:
  • info: {u'AzureCanvasBackend': u'direct2d 1.1', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d 1.1', u'AzureSkiaAccelerated': 0}
  • isGPU2Active: False
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • webglRenderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX 660 Direct3D11 vs_5_0 ps_5_0)
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Direct3D 11

Modified Preferences

Misc

  • User JS: Yes
  • Accessibility: No
jscher2000
  • Top 10 Contributor
8794 solutions 71943 answers

Chosen Solution

Sometimes external software will create or update an optional settings file named user.js. For some reason, one of the things that often shows up in there is a preference to restore your previous session just once. However, because Firefox uses user.js to override your normal settings every time it starts, that then turns into a permanent change.

Your More System Details (next to your post) shows that you have a user.js file. To check what's in it and/or remove it, try this support article: How to fix preferences that won't save.

Note that by default, Windows hides your Firefox profile folder from search and from easy browsing in Windows Explorer. You can access the folder from within Firefox using either

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

In the first table on the page, click the "Show Folder" button. This should launch the folder in Windows Explorer.

Any luck?

Sometimes external software will create or update an optional settings file named '''user.js'''. For some reason, one of the things that often shows up in there is a preference to restore your previous session just once. However, because Firefox uses user.js to override your normal settings every time it starts, that then turns into a permanent change. Your More System Details (next to your post) shows that you have a user.js file. To check what's in it and/or remove it, try this support article: [[How to fix preferences that won't save]]. Note that by default, Windows hides your Firefox profile folder from search and from easy browsing in Windows Explorer. You can access the folder from within Firefox using either * "3-bar" menu button > "?" button > Troubleshooting Information * (menu bar) Help > Troubleshooting Information * type or paste about:support in the address bar and press Enter In the first table on the page, click the "Show Folder" button. This should launch the folder in Windows Explorer. Any luck?
jscher2000
  • Top 10 Contributor
8794 solutions 71943 answers

Helpful Reply

Another possibility is that Firefox keeps crashing during shutdown, and so Firefox is recovering from a crash every time. To diagnose this, you can change how Firefox recovers from a crash: instead of restoring the previous session, it will show a list of what you had open so you can be selective or bypass it altogether.

Here's where you change that:

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the search box above the list, type or paste sess and pause while the list is filtered

(3) Double-click the browser.sessionstore.max_resumed_crashes preference and change the value from 1 to 0 and OK that.

Note: Please don't change any other sessionstore preferences without researching them first.

Another possibility is that Firefox keeps crashing during shutdown, and so Firefox is recovering from a crash every time. To diagnose this, you can change how Firefox recovers from a crash: instead of restoring the previous session, it will show a list of what you had open so you can be selective or bypass it altogether. Here's where you change that: (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter. Click the button promising to be careful. (2) In the search box above the list, type or paste '''sess''' and pause while the list is filtered (3) Double-click the '''browser.sessionstore.max_resumed_crashes''' preference and change the value from 1 to 0 and OK that. ''Note: Please don't change any other sessionstore preferences without researching them first.''
jscher2000
  • Top 10 Contributor
8794 solutions 71943 answers

Okay one more and I'll let you compute in peace: to run Firefox with factory default settings, try:

Create a new Firefox profile

A new profile will have your system-installed plugins (e.g., Flash) and extensions (e.g., security suite toolbars), but no themes, other extensions, or other customizations. It also should have completely fresh settings databases and a fresh cache folder. (You can import your bookmarks to it later.)

Exit Firefox and start up in the Profile Manager using Start > search box (or Run):

firefox.exe -P

Please don't delete anything here.

Any time you want to switch profiles, exit Firefox and return to this dialog.

Click the Create Profile button, assign a name like March15, and skip the option to relocate the profile folder. Then start Firefox in the new profile you created.

Does it bypass the problems you're trying to solve?

Firefox will keep using this new profile until you switch. When returning to the Profile Manager, you might be tempted to use the Delete Profile button. But... it's a bit too easy to accidentally delete your "real" profile, so I recommend resisting the temptation. If you do want to clean up later, I suggest making a backup of all your profiles first in case something were to go wrong.

Regarding migrating data to the new profile, see: Recovering important data from an old profile.

Okay one more and I'll let you compute in peace: to run Firefox with factory default settings, try: '''Create a new Firefox profile''' A new profile will have your system-installed plugins (e.g., Flash) and extensions (e.g., security suite toolbars), but no themes, other extensions, or other customizations. It also should have completely fresh settings databases and a fresh cache folder. (You can import your bookmarks to it later.) Exit Firefox and start up in the Profile Manager using Start > search box (or Run): firefox.exe -P ''Please don't delete anything here.'' Any time you want to switch profiles, exit Firefox and return to this dialog. Click the Create Profile button, assign a name like March15, and skip the option to relocate the profile folder. Then start Firefox in the new profile you created. Does it bypass the problems you're trying to solve? Firefox will keep using this new profile until you switch. When returning to the Profile Manager, you might be tempted to use the Delete Profile button. But... it's a bit too easy to accidentally delete your "real" profile, so I recommend resisting the temptation. If you do want to clean up later, I suggest making a backup of all your profiles first in case something were to go wrong. Regarding migrating data to the new profile, see: [[Recovering important data from an old profile]].
FredMcD
  • Top 10 Contributor
4271 solutions 59908 answers

Bookmark and use this; Mozilla Search Reset {web link} This add-on is very simple: on installation, it backs up and then resets your search preferences and home page to their default values, and then uninstalls itself. This affects the search bar, URL bar searches, and the home page.


Settings Guard for Firefox {web link} Detects and resets changes to settings that are frequently done by add-ons and application installers.

Bookmark and use this; '''[https://addons.mozilla.org/en-US/firefox/addon/searchreset/ Mozilla Search Reset]''' {web link} This add-on is very simple: on installation, it backs up and then resets your search preferences and home page to their default values, and then uninstalls itself. This affects the search bar, URL bar searches, and the home page. ---------------- '''[https://addons.mozilla.org/en-US/firefox/addon/settings-guard Settings Guard for Firefox]''' {web link} Detects and resets changes to settings that are frequently done by add-ons and application installers.

Question owner

Awesome. Erasing the user.js file did the trick. You are THE MAN.

Awesome. Erasing the user.js file did the trick. You are THE MAN.