This is a tp dictionary for Firefox.
Installation:
a) download attached .zip file, save it and rename to tp-dictionary.xpi (this form doesn't allow to attach files with .xpi extension)
b) open the file with Firefox (double click, select "Choose a program from the list" or similar and choose Firefox from the list of programs)
c) accept instalation
Usage:
1) run Firefox, go to any page with edit field, like editing a post on this forum. Type in some text in toki pona.
2) to spellcheck: right-click in the edit field, then select "languages" and then "latin" (sorry, Firefox is not aware of toki pona). Voila! Now Firefox underlines all words not in tp official word list. If you wan't to spellcheck English text again, just right click again and select "languages", "English" (or your language).
Sample:
taso... ni li sona ala sona?
nimi pine li nimi tan toki Inli.
a a a! ni li pona. mi wile e ijo ni!
Screenshot: the tp dictionary for Firefox installed and enabled.
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EDIT: "noka" added