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Opening a .php link now asking for a program or to download instead of opening link

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It would normally kjust follow the link, For some reason not working now, I uninstalled and reinstalled Firefox but no joy. And archived solution said delete mimeTypes.rdf file, but I can't find it. Thanks for any help. Think I'll need to switch to chromw until I can get this working.

It would normally kjust follow the link, For some reason not working now, I uninstalled and reinstalled Firefox but no joy. And archived solution said delete mimeTypes.rdf file, but I can't find it. Thanks for any help. Think I'll need to switch to chromw until I can get this working.
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Excuse my terrible typing please :D

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Normally the server would process the PHP code and send the processed file as text/html. If you would get a download prompt then this would suggest that the server isn't processing the file properly.

You can check this in the Network Monitor.

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Hi rod_c, is the problem specific to that site? For example, what about this PHP file:

https://www.jeffersonscher.com/res/resolution.php

Thank you for sharing your add-ons list, it mentions Bitdefender. Bitdefender has a feature to pre-filter your browsing requests, so if you want to rule that out as a factor, check the Bitdefender section of the following article: How to troubleshoot security error codes on secure websites.