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Last Comment Bug 550540 - Firefox does not recognize DreamFactoryPlayer NPAPI plugin
: Firefox does not recognize DreamFactoryPlayer NPAPI plugin
Product: Toolkit Graveyard
Classification: Graveyard
Component: Plugin Finder Service (show other bugs)
: unspecified
: x86 Windows 7
: -- normal (vote)
: ---
Assigned To: Nobody; OK to take it and work on it
: 525542 (view as bug list)
Depends on:
  Show dependency treegraph
Reported: 2010-03-05 12:00 PST by Bill Appleton
Modified: 2014-09-24 05:45 PDT (History)
7 users (show)
See Also:
QA Whiteboard:
Iteration: ---
Points: ---


Description Bill Appleton 2010-03-05 12:00:39 PST
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6

We have 10,000 enterprise companies who are frustrated trying to use Firefox because they get no help installing our NPAPI plugin for the DreamFactory Player. All they see is a message "no suitable plugins were found" which is not true -- our MIME type "application/dreamfactory" is registered with IANA. Internet Explorer handles this situation seamlessly, even with UAC. These customers WANT to install the plugin, please help the plugin finder service find our installer. Other than this we work great with Firefox. 

Reproducible: Always

Steps to Reproduce:
1. Go to
2. See the confusing and incorrect messages
3. Stop using Firefox and go use Internet Explorer for automatic installation

Expected Results:  
Tell them a suitable plugin WAS found, and give them the option to install it.

I am the CTO at DreamFactory Software

PLEASE fix this, we want our customers to continue using Firefox
Comment 1 Leif-AMO 2011-08-07 08:21:05 PDT
1. The correct IANA MIME type is "application/vnd.dreamfactory", it was missing the "vnd." tree prefix.  See URL below.

2. I verified the described steps to reproduce this behavior.

3. On the Plugin Check / More Info page ( ) I found these instructions: Plugin vendors can _update_their_release_information.  (link: )  Maybe try that?

Personal note: I'm just a casual Mozilla Firefox user here on Mozilla Firefox 6.0b4.  Just learning about the whole unidentified plugins issue in general, as I have several installed from large vendors such as Google, Apple, Yahoo, NVIDIA, and a free software project GPAC.  All of them are not recognized.
Comment 2 Bill Appleton 2011-08-08 09:41:40 PDT
We have given up on this issue, and now use JavaScript to detect the plugin and redirect to an installation page. The message in FireFox is misleading at best, and Safari no longer supports the pluginspage attribute any way. 

We are not included in the plugin check service, we have tried for eight years to be included. This is designed to give large vendors a strategic advantage, raise competitive barriers, and deny choice to FireFox users.
Comment 3 Justin Scott [:fligtar] 2011-09-02 14:30:04 PDT
*** Bug 525542 has been marked as a duplicate of this bug. ***
Comment 4 Justin Dolske [:Dolske] 2013-04-23 23:44:05 PDT
PFS is being retired, and there are no plans to support the installation of additional plugin types (due to history of stability, performance, and security problems plugins introduce). Websites using these plugins should provide their own install information when the plugin is missing or migrate to HTML-based solutions.

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