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Making moves
Status: New idea

Firefox Nightly reports a very uncommon user agent string to websites (based on, which makes users more succeptible to tracking. It also means websites that support Firefox Stable sometimes don't recognise Firefox Nightly as a valid version of Firefox.

Having an option to set the user agent to be two versions behind at all times would help.

This is similar to what privacy.resistFingerprinting does, but privacy.resistFingerprinting sets the UA string to the latest ESR version, not the latest stable version, along with a lot of other config changes.

Status changed to: New idea
Community Manager
Community Manager

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Making moves