Hello trevorbainbridge,

i have a very easy Hotkey to fix the problem:

please follow:

Alt+Shift+W to close all duplicate tabs (this could be configured in the options in future version).

I hope solve your problem:

Thank you !

This doesn't even start to answer my problem. Why are duplicate tabs being created? How can they be prevented? Your solution doesn't work either. Nothing happens when I press Alt+Shift+W.

Hello trevorbainbridge,

Could you check to see whether you have a particular box checked in the Options dialog:

"3-bar" menu button (or Tools menu) > Options > Tabs

If "Show tab previews in the Windows taskbar" is turned on, instead of having one entry per window, you get one entry per tab. Uncheck that to turn it off.

That option is/was not checked.

When do the tabs get duplicated ?

Is that during the current session or after you close and restart Firefox ?

Are you possibly using Sync ?

During use of any current Firefox tab. Extra versions of it appear for no clear reason particularly if I am following a sequence of Next screens but any time I am selecting an illustration that has a link attached. It is as if I had selected Open in New Tab but I have just pressed Enter. I don't know what Sync implies.

Hello trevorbainbridge,

To stop Firefox opens multiple tabs uncontrollably in Mozilla Firefox, follow ... When a new window opens in a new tab, I can no longer get back to the back I was on. ... Repeatedly pressing Ctrl+Shift+T or clicking on Undo close tab, will open ... Many times we have opened multiple tabs in our web browser.

Your answer seems not to be relevant to the problem.

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What has all this got to do with my problem? It is even less relevant than your previous reply.

Just to make sure : Would you please go the 3-bar menu => Options => General Under 'Startup' make sure that 'Restore previous session' is unchecked.

Just to make sure : Would you please go the 3-bar menu => Options => General Under 'Startup' make sure that 'Restore previous session' is unchecked.

- Now with the latest update, if I open a website on a tab, click on another ... For reference, I'm on an Acer Chromebook 14 which I purchased within the last 12 months. I do nothing but simple browsing on here so I can't chalk it up to ... and had to restart so many times that i was just about losing my mind by ...

Restore previous session is unchecked.

Could you check to see whether you have a particular box checked in the Options dialog:

"3-bar" menu button (or Tools menu) > Options > Tabs

If "Show tab previews in the Windows taskbar" is turned on, instead of having one entry per window, you get one entry per tab. Uncheck that to turn it off.

Show Tab previews in the Windows taskbar was already turned off.

I agree that no version of Firefox had the "Duplicate tab" option.

You very much likely had a Tab related extension. Check the "Tools->Add-ons->Extensions" list as you could have a old version of some Tab related extension listed but disabled due to be old and not compatible with Firefox 8.0

For example, search for duplicate at addons.mozilla.org will give you a number of extensions that can duplicate tabs.