Normally I would say community forks have the power to continue the project. However, in this case I think chrome / safari would eventually add enough new features that Firefox forks can’t add quick enough. Mozilla at least has some power in pushing the direction of web-standards, which these forks would lack, as well as the larger development team and some corporate usage of the browser which Mozilla has. I also don’t see the smaller development community keeping up with security issues found in the browser, particularly pertinent for corporate marketshare and individuals with a stricter threat model (journalists, dissidents, etc.)
The only other factor, is whether Firefox dissapearing would officially create impetus for an anti-trust case against Google. I doubt so under the current American presidency, but I could see the EU being concerned (even if they lack the power the US has to force the company to split). If something were to happen here there would be substantial change in the browser market, but I wouldn’t be too hopeful of this happening.
I think there’s an element of prestige people are missing. At least in my country there were online options prior to the pandemic even, they however lacked the prestige / name recognition that other institutions had. Keeping mandatory in-person classes is another way to maintain this prestige, a differentiating factor, from the other institutions.
I also have to agree with most of the comments here. From an instructional point of view online classes are lacking, they can be less engaging, and pedagogically neutered. And in fields with lots of laboratory work, it’s frankly impossible to get rid of at least part of the in-person educational component. Even for the humanities, having access to a large on-campus library of scholarly resources is integral to research.
In my personal experience I’ve been quite grateful to have access to a large archival collection, items that could not be shipped to remote students because they are too old to leave a temperature & humidity controlled environment. An online experience would prevent someone like me from doing some manuscript / original publication related research.
Now, I do think online options are helpful. ESPECIALLY for summer classes, where students may wish to retake a class while also moving away for summer work. But I do not think they should become the default, they should be an option where possible, but not the new normal.