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Recently there has been a 10 second delay when clicking links in firefox

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It occurs in Safe Mode as well. Is this a man in the middle attack, ISP throttling, or something else?

Whatever it is, it is very irritating. The firefox window freezes for 10 seconds after clicking a link. On Windows 8, Firefox 86.0, 64-bit.

It occurs in Safe Mode as well. Is this a man in the middle attack, ISP throttling, or something else? Whatever it is, it is very irritating. The firefox window freezes for 10 seconds after clicking a link. On Windows 8, Firefox 86.0, 64-bit.

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Hmm, maybe it's a proxy? You can check that here:

  • Windows: "3-bar" menu button (or Tools menu) > Options
  • Mac: "3-bar" menu button (or Firefox menu) > Preferences
  • Linux: "3-bar" menu button (or Edit menu) > Preferences
  • Any system: type or paste about:preferences into the address bar and press Enter/Return to load it

In the search box at the top of the page, type proxy and Firefox should filter to the "Settings" button, which you can click.

The default of "Use system proxy settings" piggybacks on your Windows/IE "LAN" setting. "Auto-detect" can lead to a flaky connection. You may want to try "No proxy".

Any difference?