Once the WebExtensions process of Firefox crashes, one must restart each extension individually.

This means one has to open the add-on manager and double-click these small toggles with the cursor. When one does not double-click fast enough, the listed extension moves from the "enabled" down to the "disabled" section, and the add-on manager lacks a search feature, (Ctrl+F just actuates the "Search addons.mozilla.org" search bar), meaning one has to manually scroll and find it.

It almost seems like it is deliberately designed to annoy users.