User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0 I wanted to open a html-file on my hdd, when the error "The file /c:/%E4%FC%F6/test.htm cannt be found. Please check the location and try again." occured. Hoever, if I write the URL manually into the location bar, the file can be opened. Reproducible: Always Steps to Reproduce: 1. Create a html file in: C:\äüö\test.html 2. Open it by Right-Mouse-Buttom -> Open with ... -> Mozilla Firefox

Marking as dupe of Bug 263570. Bug appears since FF 1.0. Feel free to reopen the bug if don't think it is the same issue. *** This bug has been marked as a duplicate of 263570 ***