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Firefox will not start on homepage. Always starts on last tab(s) open

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I have confirmed my options are set to open Google as my homepage, but after restarting, Firefox opens to the last open tab instead. A previous, now archived, thread shared this answer: Try opening the user.js file. For me, it only had one line, which was user_pref("browser.sessionstore.resume_session_once", true);. Once I deleted the file, everything went back to normal. However, I can't figure out where that user.js file is and I've tried searching for it to no avail. Help is appreciated. Thank you.

I have confirmed my options are set to open Google as my homepage, but after restarting, Firefox opens to the last open tab instead. A previous, now archived, thread shared this answer: Try opening the user.js file. For me, it only had one line, which was user_pref("browser.sessionstore.resume_session_once", true);. Once I deleted the file, everything went back to normal. However, I can't figure out where that user.js file is and I've tried searching for it to no avail. Help is appreciated. Thank you.

Giải pháp được chọn

On about:config, make sure to separate about and config with a colon (:) so that Firefox recognizes it as an internal page.

After exiting Firefox, can you make sure it is fully exiting? To do that, please check the Windows Task Manager, which you can open using Ctrl+Shift+Esc.

  • The Applications tab should show any open windows, which presumably will all be closed. If the tab lists a Firefox window that you can't access, it could be "off-screen".
  • The Processes tab will initially list firefox.exe, which should gradually release memory and eventually disappear (for me, the time to do this varies depending on how long Firefox was running and how much memory it was using).

I'm not sure what you mean by restoring an earlier version. I wouldn't use the Windows system restore feature for this, as it may wipe out recent bookmarks, etc. If you want to experiment with a different version of Firefox, please see this article for the download, and use the Clean Reinstall procedure: Install an older version of Firefox.

Đọc câu trả lời này trong ngữ cảnh 1

Chi tiết hệ thống bổ sung

Phần bổ trợ đã cài đặt

  • Shockwave Flash 15.0 r0
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Adobe PDF Plug-In For Firefox and Netscape 11.0.9
  • Coupons, Inc. Coupon Printer 5.0.2.2
  • McAfee MSC FF plugin DLL
  • Intel web components for Intel® Identity Protection Technology
  • Intel web components updater - Installs and updates the Intel web components
  • WildTangent Games App V2 Presence Detector
  • Amazon MP3 Downloader Plugin 1.0.18
  • 4.1.10329.0

Ứng dụng

  • Firefox 33.0.3
  • Chuỗi đại diện người dùng: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0
  • URL hỗ trợ: https://support.mozilla.org/1/firefox/33.0.3/WINNT/en-US/

Tiện ích mở rộng

  • Ebates Cash Back 3.0.2.9 ({35d6291e-1d4b-f9b4-c52f-77e6410d1326})
  • McAfee SiteAdvisor 3.7.1 ({4ED1F68A-5463-4931-9384-8FFF5ED91D92})
  • PriceBlink 4.1 (info@priceblink.com)
  • Troubleshooter 1.1a (troubleshooter@mozilla.org)
  • Skype Click to Call 7.3.16540.9015 ({82AF8DCA-6DE9-405D-BD5E-43525BDAD38A}) (không hoạt động)

Javascript

  • incrementalGCEnabled: True

Đồ họa

  • adapterDescription: Intel(R) HD Graphics 4000
  • adapterDescription2:
  • adapterDeviceID: 0x0166
  • adapterDeviceID2:
  • adapterDrivers: igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32
  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterVendorID: 0x8086
  • adapterVendorID2:
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.2.9200.16571
  • driverDate: 10-31-2013
  • driverDate2:
  • driverVersion: 10.18.10.3345
  • 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: True
  • windowLayerManagerType: Direct3D 11

Thay đổi cài đặt

  • accessibility.typeaheadfind.flashBar: 0
  • browser.cache.disk.capacity: 358400
  • 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.cache.frecency_experiment: 4
  • browser.places.smartBookmarksVersion: 7
  • browser.sessionstore.upgradeBackup.latestBuildID: 20141105223254
  • browser.startup.homepage: http://www.google.com/
  • browser.startup.homepage_override.buildID: 20141105223254
  • browser.startup.homepage_override.mstone: 33.0.3
  • dom.mozApps.used: True
  • extensions.lastAppVersion: 33.0.3
  • gfx.direct3d.last_used_feature_level_idx: 0
  • keyword.URL: http://www.bing.com/search?FORM=UP97DF&PC=UP97&q=
  • media.gmp-gmpopenh264.lastUpdate: 1415410333
  • media.gmp-gmpopenh264.version: 1.1
  • media.gmp-manager.lastCheck: 1415410331
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1415366213
  • places.history.expiration.transient_current_max_pages: 104858
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • plugin.importedState: True
  • privacy.sanitize.migrateFx3Prefs: True
  • storage.vacuum.last.index: 1
  • storage.vacuum.last.places.sqlite: 1414871839

Linh tinh

  • Người dùng JS: Không
  • Có thể tiếp cận: Không
jscher2000
  • Top 10 Contributor
8837 giải pháp 72222 câu trả lời
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Câu trả lời hữu ích

Coincidentally, I just posted about the same thing a few minutes ago:

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. To check for this and remove any user.js file you find, 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?

Coincidentally, I just posted about the same thing a few minutes ago: 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. To check for this and remove any user.js file you find, 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
8837 giải pháp 72222 câu trả lời
Được đăng

Câu trả lời hữu ích

Actually, I see your More System Details shows you have no user.js file, so it must be something else.

One 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 trying to restore the 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.


A second possibility is that the shortcut you use to start Firefox might have been modified. If you right-click it and choose Properties, then the Shortcut tab, the "target" for 64-bit Windows 7 should be just the following, no more, no less:

"C:\Program Files (x86)\Mozilla Firefox\firefox.exe"

A third possibility is another kind of optional configuration file, a lock file. These are fairly rare outside a business environment, but because they are so little know, they sometimes are created by malware. Such a file would be in Firefox's program folder. The easiest way to clean up that folder actually is the following:

"Clean reinstall" procedure

(1) Download a full installer for Firefox 33 from https://www.mozilla.org/firefox/all/ to a convenient location. (Scroll down to your preferred language.)

(2) Exit Firefox or close all open Firefox windows

(3) Rename the Mozilla Firefox program folder

64-bit Windows:

C:\Program Files (x86)\Mozilla Firefox

to

C:\Program Files (x86)\OldFirefox

32-bit Windows:

C:\Program Files\Mozilla Firefox

to

C:\Program Files\OldFirefox

(4) Run the installer you downloaded in #1. It should automatically connect to your existing settings.

Any improvement?

Note: Some plugins may exist only in that OldFirefox folder. If something essential is missing, look in these folders:

  • OldFirefox\Plugins
  • OldFirefox\browser\plugins
Actually, I see your More System Details shows you have no user.js file, so it must be something else. One 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 trying to restore the 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. ---- A second possibility is that the shortcut you use to start Firefox might have been modified. If you right-click it and choose Properties, then the Shortcut tab, the "target" for 64-bit Windows 7 should be just the following, no more, no less: "C:\Program Files (x86)\Mozilla Firefox\firefox.exe" ---- A third possibility is another kind of optional configuration file, a lock file. These are fairly rare outside a business environment, but because they are so little know, they sometimes are created by malware. Such a file would be in Firefox's program folder. The easiest way to clean up that folder actually is the following: '''"Clean reinstall" procedure''' (1) Download a full installer for Firefox 33 from https://www.mozilla.org/firefox/all/ to a convenient location. (Scroll down to your preferred language.) (2) Exit Firefox or close all open Firefox windows (3) Rename the Mozilla Firefox program folder ''64-bit Windows:'' C:\Program Files (x86)\Mozilla Firefox to C:\Program Files (x86)\OldFirefox ''32-bit Windows:'' C:\Program Files\Mozilla Firefox to C:\Program Files\OldFirefox (4) Run the installer you downloaded in #1. It should automatically connect to your existing settings. Any improvement? Note: Some plugins may exist only in that OldFirefox folder. If something essential is missing, look in these folders: * OldFirefox\Plugins * OldFirefox\browser\plugins

Người tạo câu hỏi

Thank you for your clear, thorough and speedy reply; however...none of the solutions worked. Interestingly, when I tried the first one, it got me to the "be careful" box, but I had to close other windows, and when I did that, and tried to re-do this solution, my Cox.net "sorry we can't find this website" page came up. Tried restart. Still the same.

Solution two: the properties were correct.

Solution three: I did that, and still not fixed.

Anything else you can recommend? Should I restore to the earlier version (8/30/14)

Thank you for your clear, thorough and speedy reply; however...none of the solutions worked. Interestingly, when I tried the first one, it got me to the "be careful" box, but I had to close other windows, and when I did that, and tried to re-do this solution, my Cox.net "sorry we can't find this website" page came up. Tried restart. Still the same. Solution two: the properties were correct. Solution three: I did that, and still not fixed. Anything else you can recommend? Should I restore to the earlier version (8/30/14)
jscher2000
  • Top 10 Contributor
8837 giải pháp 72222 câu trả lời
Được đăng

Giải pháp được chọn

On about:config, make sure to separate about and config with a colon (:) so that Firefox recognizes it as an internal page.

After exiting Firefox, can you make sure it is fully exiting? To do that, please check the Windows Task Manager, which you can open using Ctrl+Shift+Esc.

  • The Applications tab should show any open windows, which presumably will all be closed. If the tab lists a Firefox window that you can't access, it could be "off-screen".
  • The Processes tab will initially list firefox.exe, which should gradually release memory and eventually disappear (for me, the time to do this varies depending on how long Firefox was running and how much memory it was using).

I'm not sure what you mean by restoring an earlier version. I wouldn't use the Windows system restore feature for this, as it may wipe out recent bookmarks, etc. If you want to experiment with a different version of Firefox, please see this article for the download, and use the Clean Reinstall procedure: Install an older version of Firefox.

On about:config, make sure to separate about and config with a colon (:) so that Firefox recognizes it as an internal page. After exiting Firefox, can you make sure it is fully exiting? To do that, please check the Windows Task Manager, which you can open using Ctrl+Shift+Esc. * The Applications tab should show any open windows, which presumably will all be closed. If the tab lists a Firefox window that you can't access, it could be "off-screen". * The Processes tab will initially list firefox.exe, which should gradually release memory and eventually disappear (for me, the time to do this varies depending on how long Firefox was running and how much memory it was using). I'm not sure what you mean by restoring an earlier version. I wouldn't use the Windows system restore feature for this, as it may wipe out recent bookmarks, etc. If you want to experiment with a different version of Firefox, please see this article for the download, and use the Clean Reinstall procedure: [[Install an older version of Firefox]].

Người tạo câu hỏi

Thank you again for your help. I didn't have a colon in the about:config so that worked, and I changed the value. But the problem persisted. I went into options, and DUH! saw that the setting for when Firefox restarts was to show last opened windows and tabs!! I didn't even think to look at that - I just saw that Google.com was set as my homepage. I don't remember changing that...and in fact, used to like that Firefox would go back after a crash to last opened windows...but anyway, I feel pretty STOOPID...and am so sorry for the time you spent. Perhaps your answers will help someone else who experiences this soon. Regards...

Thank you again for your help. I didn't have a colon in the about:config so that worked, and I changed the value. But the problem persisted. I went into options, and DUH! saw that the setting for when Firefox restarts was to show last opened windows and tabs!! I didn't even think to look at that - I just saw that Google.com was set as my homepage. I don't remember changing that...and in fact, used to like that Firefox would go back after a crash to last opened windows...but anyway, I feel pretty STOOPID...and am so sorry for the time you spent. Perhaps your answers will help someone else who experiences this soon. Regards...
jscher2000
  • Top 10 Contributor
8837 giải pháp 72222 câu trả lời
Được đăng

I'm glad you found that. Unfortunately, that isn't captured by the add-on that posts your settings, so I missed mentioning it as a possibility.

I'm glad you found that. Unfortunately, that isn't captured by the add-on that posts your settings, so I missed mentioning it as a possibility.