How to fix a mouse that double-clicks on Mac

One click opens two things, drags drop early, and files open when you meant to select them — the classic worn mouse button.

Short answer

macOS can’t tell a worn button’s bounce from a real double click. MacFixes ignores the accidental second click.

What macOS gives you

System Settings → Accessibility lets you change the double-click speed, which doesn’t stop a faulty button bouncing. The usual fix is a new mouse.

1
Add the fix
Open MacFixes Settings → Mouse and add “Double-click filter”. Fixes are off until you add them.
2
Allow Accessibility
macOS asks for Accessibility permission so MacFixes can drop the accidental second click.
3
Adjust if needed
Set how close together two clicks must be to count as a bounce (60 ms by default). Deliberate double clicks still work.

This is one of 28 fixes in MacFixes.

Something else your Mac won’t do? Request it — we build it.

Yes. Only a second click closer than the threshold you set — 60 ms by default — is ignored, and a deliberate double click is much slower than that.