Setup: macOS Tahoe (26.4) and Firefox 149.0
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Behavior: Out of the blue this morning, every website I try to visit in Firefox returns "Looks like there’s a problem with … (read more)
Setup: macOS Tahoe (26.4) and Firefox 149.0
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Behavior: Out of the blue this morning, every website I try to visit in Firefox returns "Looks like there’s a problem with this site". Every other browser works fine.
Things I've tried, that haven't fixed it:
- Ruled Out DNS: Sites like 1.1.1.1 and my home router's IP return the same issue in Firefox, but also resolve in any other browser.
- Firefox Safe Mode: no fix
- Deleted All Settings, Reinstalled Fresh:
- Removed the Firefox App, deleted:
- ~/Library/Application\ Support/Firefox
- ~/Library/Caches/Mozilla
- ~/Library/Caches/Firefox
...and then downloaded and installed 149.0 fresh.
- Refreshed Firefox (via [link]
- about:preferences (toggled between FALSE and TRUE, testing each time) via this YouTube video
- network.dns.disableIPv6
- network.dns.disablePrefetch
- network.dns.disablePrefetchFromHTTPS
- network.dns.disable
....and in desperation, I checked my Mac for Malware (clean)
I'm at a complete loss: every other browser works, but Firefox is a 100% fail for all websites. Any thoughts?