Well, there are definite benefits to being in full control of profile segmentation.
You have no idea what the extension is doing unless you audit it. And even then, there are second-order effects that could surprise you [1]. Plus, the extension writer has to maximally cover the set of possibilities where a site can store/retrieve data. These are a lot of unknowns you're trusting and assumptions you're making.
It's far simpler to treat the profile directory as contaminated waste and nuke it at will.
The only assumption you're making is that the browser implements a profile in a given directory properly.
It's far simpler to treat the profile directory as contaminated waste and nuke it at will. The only assumption you're making is that the browser implements a profile in a given directory properly.
[1] https://github.com/stoically/temporary-containers/wiki/Isola...