companyBubble is a tool that displays employment-related info about a company (eg. the recruiting software they use, most popular job listing locations, average salaries for specific jobs) in the form of tooltips.
Once set up, the extension automatically searches through web pages to find company names and lookup information about these companies. Using regular expressions, the user can specify what elements to auto-scan on a given page.
Current functionality includes customizable salary lookup, caching of previous results, support for company nicknames, support for dynamically loaded pages.
Instructions & Usage at: