Firefox misspelling all words since version 61

On my Debian 9 with Firefox 61 every word is marked as misspelled, except numbers (right now, currently as I'm typing). Things I've tried: 1. Remove en-US dictionary and return it (Had to hard delete the files, as a simple removal of the extension did not remove files or menu option). 2. Add a second dictionary - it added them in the language menu and extensions tab but I don't see the files at /usr/lib/firefox/dictionaries/. I tried this both through the addons and preferences. 3. Remove firefox (sudo apt-get remove firefox firefox-esr chromium to make sure no alternative is installed) and install again. 4. Clear data (all of it). 5. Delete ~/.mozilla/firefox/*. None of the above works. I noticed removing/installing dictionaries from the extension page in firefox does not affect the actual dictionary folder, even though the extension appears and the select language menu updates. How do I get spell check to work? Pardon any spelling mistakes.