Wontfix? Installing updates manually is quite cumbersome now.
Wontfix for Firefox 68 doesn't mean that it won't be fixed in Firefox 69 (or later). Firefox 68 will be released in five days and the first RC is already built. No patch is written yet and it has to be tested, so it's not really possible to fix it in time for Firefox 68. I don't think that this issue severe enough to justify a delay of Firefox 68 - especially since updating add-ons is still possible, it's "only" an annoyance.