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Middle Mouse opens link in 2 tabs / closes 2 tabs constantly

  • 4 replies
  • 1 has this problem
  • 450 views
  • Last reply by rayben1

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Hi Firefoxes! I updated to the latest and greatest 99.0.1, whenever i use the middle mouse button it opens every link in 2 tabs. Also when i middle mouse on a tab, 2 tabs are closed. Anyone came along this bug? Restarting FF and Windows did not help. Trying to get my notebook charged and check it on my macbook.

TYVM! Best regards, -John.

Hi Firefoxes! I updated to the latest and greatest 99.0.1, whenever i use the middle mouse button it opens every link in 2 tabs. Also when i middle mouse on a tab, 2 tabs are closed. Anyone came along this bug? Restarting FF and Windows did not help. Trying to get my notebook charged and check it on my macbook. TYVM! Best regards, -John.
Attached screenshots

Modified by rayben1

Chosen solution

I am so sorry. I was very tired when i was opening the question and now i have retested it... It was indeed a hardware fault on the mouse.

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All Replies (4)

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Update: closing 2 tabs with 1 middle mouse click is not constant, but constant in opening tabs.

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rayben1, have you tried another mouse to rule out issues with mouse you are using? as the Firefox browser most certainly supports the basic three button mouse setup since forever.


I use Logitech thumb trackballs including T-CH11 (from 1995) which is literally a three button mouse (buttons only, no scroll wheel) and middle click on each trackballs and mice works fine with Fx 99 with no opening double tabs.

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Can you try a different mouse in case there is an hardware issue or possibly try to increase the double click delay to see if that has effect ?

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Chosen Solution

I am so sorry. I was very tired when i was opening the question and now i have retested it... It was indeed a hardware fault on the mouse.