But is it viable? I know very little of browser development, but my impression is that it is a lot of work to develop and keep the browsers secure. If Librewolf separated completely from upstream Firefox, would they be able to keep the browser secure without significantly expanding their team?
I ask in earnest, as I said I know very little about this.
This is my solution also. I listen to audio books on my way to work, and read on an ebook-reader in the evening. Can be tricky to sync when the chapter structure is non-traditional though (e.g. Discworld).