Please explain what you mean. It sounds like you have an important point that can only be found if people sit and carefully read several pages. Important points deserve to be stated more plainly.

For google analytics and the like there are a lot of alternatives to be fair, I've started using Simple Analytics on all my sites.

> Firefox, beyond being slower, also keeps constantly displaying ads

One tab with an ad opening when the browser has updated every few weeks or so is not what I would call "keeps constantly displaying ads".

There isn't a moral dimension attached to loving the right kind of people and gay and straight people are equally moral in pursuing relationships with significant others. On the other hand there is a moral dimension to trying to take away our fellow citizens rights. The CEO as the face of the org became unsuitable to his role when he acted publicly and objectively immorally in support of those who would gut the rights of his fellows

He wasn't on the wrong side of a political issue he was on the wrong side of decency and morality. This ought not to be a leftist position nor should we fear that the tyranny of excessive concern for others may be imposed upon us. Should we decide to use Firefox for evil as it were the privacy both endorsed and adhered to by Mozilla precludes them discovering it let alone stopping us.

The position of user of Firefox and public face of Firefox are inherently different positions and come with different reasonable expectations but I think you knew that.

> it’s dangerous to use or even give your participation to that ecosystem.

Please describe precisely the threat model you fill most applicable

> keeps constantly displaying ads

For a definition of constantly redefined to mean rarely when a new major version comes out.

> They keep performing worse actions than Google all the time.

The context here is that google tracks everything you do and regularly shares it with the government including under terms that are obviously abusive of user privacy and including to repressive governments, are in the middle of attempting to destroy ad blocking by pushing locked down environments in the name of security. A move likely to have massive implications that will be impossible to manage or control in repressive dictatorships even if Google themselves do nothing to directly assist with mass surveillance in Orwellian states. Merely building general purpose tools virtually guarantees bad usage by repressive regimes. By contrast Mozilla has? Tried to pimp their VPN to you as part of their new version notification...

It really sounds like the Brenden Eich debacle has colored your perception of the situation and perhaps you need to step back and evaluate the situation objectively.

https://waterfox.net/ to the rescue.