Yes; I see that I can add words to the dictionary so that firefox no longer flags them as wrong, but is there any way that Firefox will actually suggest the added words, so that if I do misspell them, they are pressented as suggestions?
Spell check not only underlines words that are not in its dictionary, but suggests words when the flagged words are right clicked. However, if words have been added to the dictionary by a user, it does not appear that spell check incorporates the new words into to the suggestions for proper spelling. As a result, if I misspell a word that I have added to the dictionary, I have to manually correct it, because the correct spelling that was added to the dictionary is not offered in the drop down list when the word is right clicked.
Alla svar (1)
is there any way that Firefox will actually suggest correct spelling
Right click on the indicated word, and choose, the spelling, add to dictionary, or close the right-click context menu to allow without changing anything.
You probably have other dictionary lists on your computer of words that you've already verified and added, open that list or a copy of it in Firefox and add the ones that show up as invalid using your better judgement that you have now than in the past.