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Firefox 5 Note

The WebResearch Firefox extension is currently not compatible with Firefox 5. Just after 90 days, Mozilla broke binary compatibility with all existing binary extensions. Thus, we're currently adjusting our extension to Firefox 5, which, unfortunately, takes some time. Thank you for your patience!

Imagine if Microsoft would have released an update to Windows 7 just 90 days after introducing Windows 7, and that update would have required to recompile each .exe file and get a new version of each program to make it continue to work! That's the exact situation with Firefox 5 and binary components.
Under Windows 7, you can still run .exe files from 1990. That's more than 20 years of binary compatibility! Compare that to the 90 days of Firefox. We don't think that's professionell software development.