Features

This will convert any text that looks like LaTeX inline math (beginning and ending with $) into an image of a well-formatted math expression

Installation

I have only tested this user script on Chrome using Tampermonkey, but it should work on other browsers as well.

Firefox

1. Install the Greasemonkey add-on from Mozilla.
2. Add this user script through Greasy Fork.
3. Go to Memrise.com and try out the script.

Chrome

1. Install the Tampermonkey extension on Chrome Store.
2. Add this user script through Greasy Fork.
3. Go to Memrise.com and try out the script.

Safari

Instructions courtesy of SimpleHelp.net. Visit their site for (possibly outdated) pictures.

1. First up – download SIMBL and install it (installation consists of clicking ‘next’ a bunch of times).
2. Exit Safari if you’re using it.
3. Next, download GreaseKit. To install it, drag the GreaseKit.bundle file to ~/Library/Application Support/SIMBL/Plugins (note: if you don’t have a SIMBL/Plugins/ folder, just create it, then drop GreaseKit.bundle into it).
4. Now re-open Safari. You should see a GreaseKit entry in the Safari menu bar.
5. Add this user script through Greasy Fork.
6. You’ll see a bunch of JavaScript fill up your browser window, and a Safari dialog box will appear asking you to confirm the installation. Click Install.
7. Your GreaseKit menu will now include the installed script.
8. Go to Memrise.com and try out the script.

Opera

This script won't currently work, since Opera does not support the GM_setValue functions.