A while ago, during one of its updates I lost my spelling checker in Firefox.

Firefox has not been very helpful in dealing with this, inviting me to use an add-on and then saying this add-on is not compatible with your version of Firefox. Not compatible? It's the latest updated version, for goodness sake.

I really missed my spelling checker and editing your own work is not very successful, as you always see what you think you wrote.

If you are in the same position, I finally found this on a Firefox forum and it is working now: https://addons.mozilla.org/en-GB/fir...-dictionary-2/