The Fix Facebook Like plugin fixes problems like wrong thumbnail, title, description, URL, and gives few more options for your WordPress.
Facebook Like many times gives problems like wrong thumbnail (og:image), wrong title (og:site_name), wrong description (og:description), etc. This plugin fixes them, as it enforces WordPress post thumbnail for image if a post is liked, or your website's logo if home page is liked, post title if post is liked or blog title if home page is liked, it also uses excerpts for description(optional) or blog tagline if home page is liked. In addition to these, it also gives the option to add your website type and admins of your website.
Visit Fix Facebook Like Plugin Homepage for more information.
NOTE: This plugin doesn't adds a Facebook Like button, but gives options/settings for it. There are many plugins to add Facebook Like buttons to your website, you can check them out.
It uses Open Graph protocol from Facebook for fixing these.
You can customize these in the Settings section:
New features added(since version 2.0.0)
New rules on how the go:image is picked, going from top to bottom, first match is used(credits go to Roland Schütz):
If its a post or page
If its a Front Page or Search Page