[doomrobo]

Unfortunately that's not a likely explanation. If you do even the simplest possible measurement, which is just recording user agent strings and IPs, you won't end up undercounting Firefox clients

[boomboomsubban]

Either uBlock Origin or Matrix comes with user agent spoofing, it's not like the practice is that rare.

[unityByFreedom]

Matrix used to do this but doesn't anymore [1] and uBlock never had that feature. Please don't make stuff up.

[1] https://github.com/gorhill/uMatrix/issues/927

[boomboomsubban]

I don't think it's fair to call not knowing that a feature was removed from a discontinued app "making stuff up."

I was clearly wrong, though it is easy to change your user agent it's unlikely that many Firefox users have done it.

[unityByFreedom]

You're right, I misunderstood your comment. I interpreted what you said as in, you can get this feature via either Matrix or uBlock. I see now you meant one of those has the feature and you weren't sure which one had it. Sorry about that. In my defense I think it can be read both ways.

I'd add there is a large gap in usage between uBlock and Matrix. uBlock has over 10 million users whereas Matrix is somewhere over 100,000.

[unityByFreedom]

Does uBlock Origin turn that on by default? That's the only way I could imagine such stats being wrong by a wide margin.

[executesorder66]

By mozilla's own metrics only 30% of their users use any addon at all.