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Following a Win 10 upgrade the mouse behaves as if both left and right buttons have been pressed in Firefox & Thunderbird

  • 3 replies
  • 1 has this problem
  • 7 views
  • Last reply by FredMcD

Ecton
Ecton
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Have just had a major upgrade of Windows 10. Now clicking the left mouse button has the effect of clicking the right button too. Apps other than Firefox and Thunderbird seem unaffected. Mouse settings in Control Panel look normal.

Have just had a major upgrade of Windows 10. Now clicking the left mouse button has the effect of clicking the right button too. Apps other than Firefox and Thunderbird seem unaffected. Mouse settings in Control Panel look normal.

Chosen solution

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

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All Replies (3)

FredMcD
FredMcD
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Chosen Solution

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

Ecton
Ecton Question owner
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Problem disappeared over lunchtime (it was genuine!). Good to know about safe mode.

FredMcD
FredMcD
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Glad to help. Safe Surfing.