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Firefox 4 can't open a certain website (www.511ny.org) - says it is application/vnd.wap.xhtml+xml

sfkendrick
sfkendrick
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Firefox 4 can't open a certain website (www.511ny.org) and a dialog box opens and says this page is: application/vnd.wap.xhtm+xml. It asks me if I want to save it or open it with another application. If I open with IE I get the source code and if I open with FF I get a very broken site. If I go directly to www.511ny.org in other browsers (IE, Opera, and earlier versions of FF) it views fine. I'm not a techie so I'm not sure what is going on. Any ideas?

Firefox 4 can't open a certain website (www.511ny.org) and a dialog box opens and says this page is: application/vnd.wap.xhtm+xml. It asks me if I want to save it or open it with another application. If I open with IE I get the source code and if I open with FF I get a very broken site. If I go directly to www.511ny.org in other browsers (IE, Opera, and earlier versions of FF) it views fine. I'm not a techie so I'm not sure what is going on. Any ideas?

All Replies (6)

Cheng Wang
Cheng Wang
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Try clearing your caches: How to clear the Firefox cache.

It looks like the server was sending the wrong headers.

If that doesn't fix it, go to Tools > Options > Applications and see if you have any lines corresponding to vnd.wap.xhtm+xml and select it and select the default option

sfkendrick
sfkendrick Question owner
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Hi. Thanks for the suggestions. I cleared the cache (typically I always set it to clear when I close anyway), but I still got the request to save or open the file. When I went to the Tools>Options>Applications I did find the application/vnd.wap.xhtml+xml file, but the default option is to "Always ask".

I did a little reading and it looks like this vnd.wap.xhtml+xml is a MIME type. Is that right? Looking at this page (http://www.developershome.com/wap/wapServerSetup/tutorial.asp?page=whatIsMIME) does this mean that FF4 needs to tweak something or the website I'm trying to visit or me tweaking my browser?

sfkendrick
sfkendrick Question owner
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Hmmmm, I think I need to install an plugin (https://addons.mozilla.org/en-us/firefox/addon/xhtml-mobile-profile/)--So now I can see the site, but the mobile version. Strange. Really not sure what is going on here.

Modified by sfkendrick

BILLatNYSDOT
BILLatNYSDOT
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This problem has been identified by our vendor and will be fixed shortly (hopefully today). This is not a problem with Firefox 4, but in the user-agent detection (I believe). I will post an update when its fixed.

PS: If you cant wait for the fix, you can switch your user-agent using this Firefox add-on: User Agent Switcher

-Bill

sfkendrick
sfkendrick Question owner
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Thanks Bill!

BILLatNYSDOT
BILLatNYSDOT
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The problem has been fixed.

@sfkendrick: The user-agent detection was incorrectly identifying FF4 as a mobile browser, in turn redirecting to a mobile version. That is why your work around was successful. We are now correctly identifying FF4 so you should be able to remove the add-on you installed.