Firefox version numbering

[andyandersonusa]

Is there a reason why so many version numbers do not complete a sequence before jumping ahead by a major proportion? For example, the last version 126.0.1 jumped to 127.0

This peculiar sequencing has been going on for a while, as if Firefox cannot advance 126.0.1 to 126.0.2, or go to 126.1

Is there a reason why this number jumping has been going on?

[jscher2000]

The normal numbering sequence is:

major_version.minor_version.whoops_fix

The minor version is only used for the Extended Support Release, such as Firefox 115, which is now on 115.12.0.

Release list linked to release notes:https://www.mozilla.org/firefox/releases/

[tomachi]

Versions often jump as part of semantic versioning I think it's called. The number of on right is just a tick, the middle can mean a patch or more significant feature, and the major some bigger set of feature or breaking change. But I do not know to be honest.. 

I don't like Passkeys but I reckon it's time Firefox got them. Even distrokid has them:

They should add the current version number on the download page too it's not obvious. 

I had to download it to dig it's 153.0.4 but i dunno what this other one is

and it's weird how the version installed by my operating system - Manjaro (an Arch based distro) - does not show versions: