You mean the Ubuntu LTS, I meant a browser's LTS version (a sibling comment just mentioned it's called ESR in Firefox instead of LTS... I meant the concept, not

You mean the Ubuntu LTS, I meant a browser's LTS version (a sibling comment just mentioned it's called ESR in Firefox instead of LTS... I meant the concept, not the specific name for Firefox, but my bad) so that you don't keep getting browser feature updates but only get the backported fixes.