This is a new one on me, I am running W10 on two machines, can you explain what you do, so that I might be able to replicate it on my machine and tellyou if I can work a way around your problem.

Thanks

John

Hi John,

Really quite simple. Open FF which opens to my homepage. Then open a new site in a new tab. It doesn't make any difference what site is used for the second tab. Now click the X to close FF. I then get the warning that I am about to close 2 windows. I click OK and FF closes.

On my W7 machine when I reopen FF, the two tabs that I had closed reopen.

On my W10 machine when I reopen FF, it opens to the homepage.

That is about all I can tell you.

Thanks for your help!

You can check the startup setting:

• Tools > Options > General > Startup: "When Firefox starts":
  "Show my windows and tabs from last time"
  "Show my home page"
  "Show a blank page"

In case you use "Clear history when Firefox closes" or otherwise clear history.

• do not clear the Browsing History

• Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
• https://support.mozilla.org/kb/remove-recent-browsing-search-and-download-history

• Clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, passwords, and other website specific data.
• Clearing Cookies will remove all selected cookies including cookies with an allow exception that you want to keep.

Oh wow that is really useful, thank you, hop that helps.

I could not get FF to do the same. I did manage to get another problem I had fixed on FF though.

RHB10 said

Hello, I am running FF 43.0.4 on a Windows 7 machine and a new Windows 10 machine. Someone in the past suggested how to set up FF so that when you close more than one tab, you get a warning, however, when you reopen FF all of the tabs you closed re-open. My Windows 7 machine does this perfectly, however, I have been unable to get that same preformance. I do get the warning that I am closing more than one tab but after reopening FF I only get the homepage. Would someone tell me what settings I need to change? Thanks in advance for your help!

Hello,

The reply marked "chosen" did nothing since I had set up both FF installations exactly the same. The history is not cleared or any of those things.

No matter what I try, the W10 installation continues to warn me when I close more than 1 tab and I say Close Tabs, however, upon reopening FF only the home page opens.

There is something wrong here...

Thanks for your help!

You can check for problems with preferences.

Delete possible user.js and numbered prefs-##.js files and rename (or delete) the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in current Firefox releases.

• http://kb.mozillazine.org/Preferences_not_saved
• http://kb.mozillazine.org/Resetting_preferences

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

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
• http://kb.mozillazine.org/Profile_folder_-_Firefox

Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

• https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox