Firefox spellcheck dictionary is inadequate and suggested spellings are nonsensical.

[Ken_Crawford]

Firefox spellcheck dictionary is inadequate and suggested spellings are nonsensical.

[JimCarner]

I'm yet to come across a spellchecker that works exactly how I'd like. This is mainly because of far too many missing entries. A (seemingly) easy solution would be to use the entire contents of Wikipedia with each word/term/phrase sorted A-Z (and all duplicates deleted). That would instantly make a spellchecker FAR better than any existing one.

And when it comes to spellchecking letters written in a word processor, then pretty much every line of every address is queried by spellcheckers, including postcodes/ZIP codes. I live in the UK and years ago you could buy a DVD from the Royal Mail of all the addresses in the UK. I don't know if that's still the case, but if all the addresses in a particular country (or countries plural) could be imported into a spellchecker that would eliminate this annoying spellcheck problem.

[314_KASTET]

So Ok, Jim - that's cool - but you basically confused OP's issue and questioned the idea in general. "I want THIS spell checker to be better, it is BAD." "I'm yet to come across a spellchecker that works exactly how I'd like." ... It's not even in the same room, and since when are people asking us how we'd like our spellchecker's to work?

Whatever, KEN, MY MAN, YES - THE SPELLCHECK has some GARBAGE SUGGESTIONS, COMPLETELY UNHELPFUL, have to Google words instead - it can be better, we use better spellchecks in programs every day, Jim, so yeah - Mozilla - Cmon. Investigate and update how suggestions work.