If there are separate links for Opera and Firefox, both refer to the same file, but the Opera link will save as *.js and the Firefox link will save as *.user.js.
Accented Character Shortcuts (Opera) – (Firefox)
This script is now obsolete for Opera. Use my Text Shortcuts extension instead.
This script lets you enter accented characters with “Ctrl+symbol, character” shortcuts like in Microsoft Word. All shortcuts at http://office.microsoft.com/en-us/help/HP012303781033.aspx except ones that use
Mangafox Ajax Preloader (Opera) – (Firefox)
This script preloads all the images in a chapter on Mangafox and replaces the top ad with a progress indicator showing which pages are loaded. It overrides all the page changing controls on the page so that page changing is instant and automatically enlarges two-page spreads.