2 ms·Uh it says I'm on Firefox 52 and can't install this. But I'm on Firefox 59.by atonse 9y agoUh it says I'm on Firefox 52 and can't install this. But I'm on Firefox 59.evilpie 9y agoYou probably have the privacy.resistFingerprinting preference set to true. This spoofs your browser version.atonse 9y agoYep that fixed it. Thank you!