Ubuntu – How to change the language of the Firefox built in spellcheck from UK English to US English

I think you can setup multiple spelling files in VIM to work together.

set spelllang=en,de

• Read up the VIM pages for configurations (and, if required, creation of new spelling files)
• You may need to fetch some of the .spl spelling files if they are not available in your spell/ directory
• Check specifically, spl files, sug files, spellang, spellsuggest

You can also check Vimchant : Fast on-the-fly spell-checker based on Enchant

Using latexmk, vim spell checking and vim latex-suite
(it also refers to Sourceforge Kile, an Integrated LaTeX Environment)

I use French and English in almost all of my emails and this is a nightmare.

There is a (quite simple) solution, but you need to hack one of your dictionaries: copy-paste the content of e.g. your English dictionary into your French one; it works! As simple as that!

This is how I solved this issue on Mac OS X:

1. Go to /Users/HERE_YOUR_USER/Library/Application Support/Firefox/Profiles (use Cmd-Shift-G if your Library folder is hidden), and select your profile folder (mine was default.uo0) and the extensions folder.

2. You will see folders for each of your dictionaries (en-US@dictionaries.addons.mozilla.org and fr-classique-reforme1990@dictionaries.addons.mozilla.org in my case). In each main folder, a dictionaries folder.

3. Copy the content of the .aff and .dic of one of your dictionaries into the .aff and .dic file of the other. Don't copy the first line in the .dic file; it's the word count!

Warning: in the .dic file, update the word count on the first line. It must be the number of lines of the file minus 1 (the first which is the word count).

4. Restart Firefox! And now, vous pouvez taper en français et in English in the same text area!