User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7b) Gecko/20040318 Firefox/0.8.0+ Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7b) Gecko/20040318 Firefox/0.8.0+ Sometimes, I don't know the cause, clicking a URL to other html files initiates downloading the linked html files, instead of opening them. There is no specific URL you should test with. Try google, and click on any URL. Reproducible: Sometimes Steps to Reproduce: 1. I have no idea how to reproduce it. 2. 3. Actual Results: Linked HTML files are downloaded. Expected Results: Should be opened.
Worksforme with Firefox 20040425 on windows XP.