Firefox doesn't know how to open this address, because the protocol (mf)

whan i try to download anything i got the msg: Firefox doesn't know how to open this address, because the protocol (mf)
any help pls?

Does this happen often, or just on one specific link? It sounds like the link on the web page is broken and contains "mf:" instead of "http:".
If it's a public website, can you post the address of the page containing the link? If not, you could try to report the problem if there is a feedback email address on the web page.

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I am getting this error message when trying to get to a college webpage Firefox doesn't know how to open this address, because the protocol (html) isn't associated with any program.

I am trying to get to a college webpage for information and get this error message from firefox Firefox doesn't know how to open this address, because the protocol (html) isn't associated with any program.
== This happened ==
Every time Firefox opened
== whe trying to access webpage

Is this coming from a link, or from something you are trying to type in the address bar?
Try replacing the "html" at the start with "http",
so if you have html://somesite.edu,
change it to http://somesite.edu.

When I try to open a video from the website Youtube I got this message that I didnt before I uograde to Firefox 7.0.1 : "Firefox doesn't know how to open this address, because the protocol (rtsp) isn't associated with any program."

When I try to open a video from the website Youtube I got this message that I didnt before I uograde to Firefox 7.0.1 : "Firefox doesn't know how to open this address, because the protocol (rtsp) isn't associated with any program."
That didnt happen before until I made an upgrade to 7.0.1

Clear the cache and the cookies from sites that cause problems.
"Clear the Cache":
* Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"
"Remove Cookies" from sites causing problems:
* Tools > Options > Privacy > Cookies: "Show Cookies"

HP Protect tool password manager not working with the new version of Mozilla: I got this alert: "Firefox doesn't know how to open this address, because the protocol (dpql) isn't associated with any program." please help

I have an HP ProBook 4520s. I have been using HP Protect tool's Password manager to store and manage my passords for all Login websites in Firefox 3.6. As a result, I just swiped my fingerprint to log on to any website.
After I installed the version 4 of Firefox, my all my login details do not work anymore. I have tried to reset them but I repeatedly get this error: "Firefox doesn't know how to open this address, because the protocol (dpql) isn't associated with any program."
something like this would have been passed onto the address: "dpql://c:\program%20files%20(x86)\hewlett-packard\hp%20protecttools%20security%20manager\bin\dpminionlineids.dll/qlinkload.htm#id=2".
Although the password manager works with Internet Explorer 9, I need it to work with Firefox 4 as this is my preferred browser.
Please help. Thank you!

I guess this means that IE is more user friendly for HP Password Manager finger swipe recall of passwords, a favorite of mine. I still don't see a post from Firefox as to why they haven't produced fix. So I'll switch to IE until things change. I don't see value in downgrading to a Firefox version that's no longer going to be supported.

I downloaded Newest mozilla yesterday, adobe updated, and now when I click a YouTube video I get a box saying "Firefox doesn't know how to open this address, because the protocol (rtsp) isn't associated with any program." and can't watch any videos?

I downloaded the latest version of Mozilla Firefox yesterday, full and complete, and I am actually using it right now. The only problem I have had is upon clicking any YouTube video, the box pops up saying "Firefox doesn't know how to open this address, because the protocol (rtsp) isn't associated with any program." But there are no directions or suggestions on how to address this problem. Ive looked at YouTube add-ons and none of them really seem related. Upon the finish of the new Mozilla, I also was prompted to upgrade the flash player, and did so without any trouble. I am only guessing this is an extension/plug-in problem. I really am quite confused!

Clear the cache and the cookies from sites that cause problems.
"Clear the Cache":
* Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"
"Remove Cookies" from sites causing problems:
* Tools > Options > Privacy > Cookies: "Show Cookies"

I have installed HP2035n. But when i try to open the embedded web server, i get the error "Firefox doesn't know how to open this address, because the protocol (fe80) isn't associated with any program." What is the possible solution?

I have installed HP2035n. But when i try to open the embedded web server, i get the error "Firefox doesn't know how to open this address, because the protocol (fe80) isn't associated with any program." What is the possible solution?
I typed in the IPv6 address of the printer in the address feild of firefox.

Start Firefox in [[Safe Mode]] to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode
Do a malware check with some malware scanning programs. 
You need to scan with all programs because each program detects different malware. 
Make sure that you update each program to get the latest version of their databases before doing a scan. 
* http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
* http://www.superantispyware.com/ - SuperAntispyware
* http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
* http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
* http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
See also:
* "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

When trying to stream video I am getting this error message "Firefox doesn't know how to open this address, because the protocol (st) isn't associated with any program." How do I fix this?

<blockquote>Locking duplicate thread. 
Please continue here: [/questions/782039]</blockquote> 
When trying to stream video I am getting this error message "Firefox doesn't know how to open this address, because the protocol (st) isn't associated with any program." How do I fix this?

Protocol error usually indicates that the very leftmost part of the URL is not recognized.
So http://, ftp://, rtsp://, usually work.
ableton:// would need to be added by some software somewhere...
Can you get instructions from the vendor? Does these posts seem relevant:
[http://forum.ableton.com/viewtopic.php?f=32&t=112368 Ableton Forum • View topic - [dds] Bug with Fireforx browser and downloading project?]
[http://forum.ableton.com/viewtopic.php?f=32&t=109918 Ableton Forum • View topic - [gck] Problem downloading shared sets from Ableton server.].

I try to email or IM a link or comment on a website page and I get this error message: Firefox doesn't know how to open this address, because the protocol (ymsgr) isn't associated with any program.

Firefox doesn't know how to open this address, because the protocol (ymsgr) isn't associated with any program. I try to email or IM a link or info on a web page I get this error message. How can I send an email or IM?

Protocol error usually indicates that the very leftmost part of the URL is not recognized.
So http://, ftp://, rtsp://, usually work.
ableton:// would need to be added by some software somewhere...
Can you get instructions from the vendor? Does these posts seem relevant:
[http://forum.ableton.com/viewtopic.php?f=32&t=112368 Ableton Forum • View topic - [dds] Bug with Fireforx browser and downloading project?]
[http://forum.ableton.com/viewtopic.php?f=32&t=109918 Ableton Forum • View topic - [gck] Problem downloading shared sets from Ableton server.].

Unable to download music - error message reads "Firefox doesn't know how to open this address, because the protocol (wmms) isn't associated with any program."

I purchased a song to download from Walmart.com and received the error message when I tried to download the song; "Firefox doesn't know how to open this address, because the protocol (wmms) isn't associated with any program." I've never had a problem before. I paid for this download & I can't even access it.

Does the Walmart site offer a plugin or program (Walmart MP3 Music Downloads) to handle that protocol? 
See:
* http://mp3.walmart.com/store/help/help.htm
* http://mp3.walmart.com/store/help/downloading.htm
On Windows a protocol need to be registered by a program that supports that protocol.
See also http://kb.mozillazine.org/Register_protocol

Can't open any links within my emails. The display reads, "Firefox doesn't know how to open this address, because the protocol (blockedhttp) isn't associated with any program." How can I fix this?

Can't open any links within the emails using Firefox. I can open them in other browsers however. The message reads, "Firefox doesn't know how to open this address, because the protocol (blockedhttp) isn't associated with any program.". How can I fix this?

Looks like blocking software to purposely block a page by messing with the url.
*http://kb.mozillazine.org/Parental_controls
*http://kb.mozillazine.org/Blocking_sites (more links)

I received the following error when attempting to use HP SimplePass Identity Protection to manage my passwords; Firefox doesn't know how to open this address, because the protocol (dpql) isn't associated with any program. How can I correct this?

I use HP SimplePass Identity Protection to control my passwords. Everything was fine until I updated to Firefox 4. Can I remove version 4 or is there a solution to my problem. I received the following error message; Firefox doesn't know how to open this address, because the protocol (dpql) isn't associated with any program.

You'll have to downgrade to the previous secure version I regret to say. See https://support.mozilla.com/en-US/questions/799388
Go to [http://www.mozilla.com/en-US/firefox/all-older.html Download Firefox v3.6.17] and download it to the desktop. 
Then go to Add/Remove Programs, scroll down to "Mozilla Firefox" and remove it, choosing to keep your bookmarks, customizations etc., (don't checkmark the box). 
Then reboot and delete the folder called "Mozilla Firefox" at this location: C:\Program Files\Mozilla Firefox 
Finally run the installation file you downloaded to the desktop earlier. 
Your bookmarks, customizations etc., are maintained in a different location and will become available to you again once you complete the installation. 
After you complete the installation, go to the [http://www.mozilla.com/en-US/plugincheck/ Plugins Check] page and update those where necessary.
Here's a free open source password manager: http://keepass.info/

When trying to go into itunes I get this message "Firefox doesn't know how to open this address, because the protocol (itmss) isn't associated with any program"

When trying to log into itunes i get this message:
Firefox doesn't know how to open this address, because the protocol (itmss) isn't associated with any program.
I had to reset Firefox (due to slowness and shockwave error message that I kept getting). Itunes was downloaded after the reset, but I can't get into it? Any ideas?

I ran into this same problem after Firefox auto-updated to v24! I'm on the Beta Channel and I had Firefox set to automatically update.
What I did to correct the problem:
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Options> Advanced> Update [tab]
Firefox updates
[x] Check for updates, but let me choose whether to install them
[ ] (unchecked) Use a background service to install updates
I also unchecked;
[ ] Search Engines (I will turn this back on after I'm done with my experiment.)
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Since I reverted back to v23, I haven't had any problems.

I am trying to get Firefox to open Vuze when I click on a magnet link, I get the following message: Firefox doesn't know how to open this address, because the protocol (magnet) isn't associated with any programme. tell me the solution

when i try to open torrent using magnet, I get the following message. Firefox doesn't know how to open this address, because the protocol (magnet) isn't association to any programme.

'''I had this problem and just re-installed Firefox. Problem solved. In my case I believe it was due to installing FlashGet. Though I uninstalled FlashGet, it had pre-empted the Magnet links / protocol. I hope this helps you with your instance. Happily I had the installer for my version of Firefox (7.0.1) saved and used that but you might need to search for your current version or install a later version'''

Firefox doesn't know how to open this address,because the protocol (racelive) isn't associated with any program

i get this alert:
firefox doesn't know how to open this address,because the protocol (racelive) isn't associated with any program.
website http://www.real-timeracing.com/frontpage.aspx
i can supply you with login details if needed,it works fine with firefox on windows but no on mac same problem with chrome and safari on mac

See this support article: 
https://support.mozilla.com/en-US/kb/The%20protocol%20is%20not%20associated%20with%20any%20program

The address wasn't understood Firefox doesn't know how to open this address, because the protocol (

Hallo, how can I resolve this problem on a mac? The address wasn't understood Firefox doesn't know how to open this address, because the protocol (aam) isn't associated with any program.

You need to install the Creative Cloud app/ application manager first.
Mylenium

Firefox doesn't know how to open this address, because the protocol (mf)

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