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link opens multiple windows

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When opening a link from email, Firefox 70.0.1 will launch and open two windows. The front window contains the desired link opened while the rear window opens my designated home page. Additionally the front window at the link address has all of the Mac OS menu bar blank with the exception of Firefox next to the Apple icon. The rear FF window, if brought to the front will show all of the usual FF menu items in the Mac menu bar (File, Edit, View etc) see screenshots.

There was another similar problem but none of the suggestions have resolved this. I have went as far as refreshing Firefox, creating a new profile yet the issue persists.

This problem will only occur when FF is closed and must launch to open a link. When FF has already launched, opening a link in a new tab in an already opened window functions as it should.

Any thoughts or suggestions are greatly appreciated. Firefox 70.0.1 OS Catalina 10.15.1

When opening a link from email, Firefox 70.0.1 will launch and open two windows. The front window contains the desired link opened while the rear window opens my designated home page. Additionally the front window at the link address has all of the Mac OS menu bar blank with the exception of Firefox next to the Apple icon. The rear FF window, if brought to the front will show all of the usual FF menu items in the Mac menu bar (File, Edit, View etc) see screenshots. There was another similar problem but none of the suggestions have resolved this. I have went as far as refreshing Firefox, creating a new profile yet the issue persists. This problem will only occur when FF is closed and must launch to open a link. When FF has already launched, opening a link in a new tab in an already opened window functions as it should. Any thoughts or suggestions are greatly appreciated. Firefox 70.0.1 OS Catalina 10.15.1
Screen ƒe photowo kpe ɖe eŋu

All Replies (4)

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Do both window use the same profile folder if you check this by opening the about:profiles page via the location/address bar ?

It is possible that a new default-release profile folder has been created. See "Determine if Firefox has created a new profile":

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Thanks for the reply.

When I received an email notification of your reply I opened that link which launched FF (my default browser). Upon launch the problem occurred.

Both windows were using the same profile. In the about:profiles page there are two profiles; dev-edition-default and my own profile. I have tried switching the default profile from my own to the dev-edition but no matter which default profile is selected, the dual-windows when launching a link problem still persists.

J. trɔe

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There is an open thread on Bugzilla about this problem:

Bug 1600153

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When I open multiple site links. Its showing error. It's about internet error but my internet is 100% working. Is it a problem in latest update? Can I use the old version with complete security?