Thread:Extension talk:FancyBoxThumbs/Issue with long descriptions/reply

You may have already found this, but for anyone else trying to tame long captions, if you include the following in your LocalSettings.php file, then the caption will be enclosed in the bounding box and long captions are handled quite well. If you have other FancyBoxOptions, of course, you'll need to add this to them rather than adding this line by itself.

$fbtFancyBoxOptions = '{"helpers":{"title":{"type":"inside"}}}';