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Mac firefox quantum is treated as windows version for websites, how fix?

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Running Firefox Qunatum in mac El captain (10.11.16), previouslly had the Random Agent Spoofer add-on set on on windows. What can I do?

Running Firefox Qunatum in mac El captain (10.11.16), previouslly had the Random Agent Spoofer add-on set on on windows. What can I do?

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hi, this is how to restore the genuine UA: How to reset the default user agent on Firefox

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Suluhisho teule

hi, this is how to restore the genuine UA: How to reset the default user agent on Firefox

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This kind of extensions could be easily converted to be compatible with Quantum. Ask the developer to provide an update. Or go to AMO and choose different, compatible extension.