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Many of the websites I use say they are not compatible with Firefox 4....bummer. I get an error that says "your browser must support 128-bit SSL. Please use the links provided below to update your browser to 128-bit SSL. "

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  • Dernière réponse par cor-el

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Many of the websites I use say they are not compatible with Firefox 4....bummer. I get an error that says "your browser must support 128-bit SSL. Please use the links provided below to update your browser to 128-bit SSL. "

Many of the websites I use say they are not compatible with Firefox 4....bummer. I get an error that says "your browser must support 128-bit SSL. Please use the links provided below to update your browser to 128-bit SSL. "

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I keep getting "follow link to update browser to 128-bit SSL but there are no links to follow. Please advise. Thanks

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If websites complain about 128 bit encryption not available then that can be caused by the "U;" that is no longer present in the Firefox 4 user agent.

You can see the current user agent on the Help > Troubleshooting Information page.

You can try to add "U;" via variations like posted below for the user agent setting via the pref general.useragent.override to see if that works.

If you update Firefox then you need to adjust the Gecko (rv:) and Firefox version to reflect the currently installed version.

Some examples (Vista is 6.0 - Windows 7 is 6.1):

  • Mozilla/5.0 (Windows NT 6.0; U; rv:2.0.1) Gecko/20100101 Firefox/4.0.1
  • Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:2.0.1) Gecko/20100101 Firefox/4.0.1