Remote xul Firefox unsupport technology of Webmail PHP 5.5

Als ik inlog op mijn webmailserver (php 5) van mijndomein.nl krijg ik de volgende melding: "Remote XUL. This page uses an unsupported technology that is no longer available by default in Firefox."
While making an inlog in the webmailserver (php 5) van mijndomein.nl it is impossible to make connection. I recieve the message "Remote XUL. This page uses an unsupported technology that is no longer available by default in Firefox."

See https://developer.mozilla.org/en/using_remote_xul
* Remote XUL Manager: https://addons.mozilla.org/firefox/addon/remote-xul-manager/

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This is what I get when I try to log in to Advanced Interface in Knology WebMail: Remote XUL This page uses an unsupported technology that is no longer available by default in Firefox. Please contact the website owners to inform them of this problem.

When trying to log in to Knology WebMail, I get the response "Remote XUL This page uses an unsupported technology that is no longer available by default in Firefox. Please contact the website owners to inform them of this problem." However, this is NOT a problem with Knology, but apparently, with Firefox.

https://addons.mozilla.org/en-US/firefox/addon/remote-xul-manager/

I get error "Remote XUL This page uses an unsupported technology that is no longer available by default in Firefox." when I access email. How do I fix?

When version 17 was installed, a message briefly displayed that stated that 3 features would not be available, but I was not quick enough to note what they were. It was after that point that I started to get the “Remote XUL” error when I tried to access my email host via Firefox. I contacted my email host tech support (PureHost.com) and they were able to access my email without any problems. The tech used MS IE. I was also able to access my email with IE, but I prefer Firefox and have been using FF since vers. 2. What is “Remote XUL”, and what can I download to fix this problem without having to locate and install version 16 ?

See:
* https://developer.mozilla.org/en/using_remote_xul
* Remote XUL Manager: https://addons.mozilla.org/firefox/addon/remote-xul-manager/

Remote XUL no longer available in Firefox to set interface speed to broadband by internet provider

We had some problems with thunderbird lately and had to redo some settings. When resetting my email account on the server to 'Interface speed' from Simple (Dialup) to Advanced(Broadband) it comes up with the message: REMOTE XUL - this page uses an unsupported technology that is no longer available by default in Firefox. I have version 7.0.1

Support for remote XUL was dropped a while back because it was a constant source of security concerns. If you find any website or application still using it you should report it as a bug to its developers.
There is a [https://addons.mozilla.org/firefox/addon/remote-xul-manager/ Remote XUL Manager extension] which can be used to allow it to trusted sites on an individual basis if you really need it, but the only cases where this should legitimately come up are XUL code examples and some enterprise's internal software systems.

Firefox geeft de volgende melding: This page uses an unsupported technology that is no longer available by default in Firefox. Terwijl ik deze webmailsite in firefox versie 3 gewoon kon gebruiken.

''locking as a duplicate - https://support.mozilla.com/en-US/questions/823560''
Firefox geeft de volgende melding: This page uses an unsupported technology that is no longer available by default in Firefox. Terwijl ik deze webmailsite in firefox versie 3 gewoon kon gebruiken. Wat kan Firefox doen om dit op te lossen, want mijn zakelijke mail loopt over die site en daar wil ik wel graag zsm weer bij kunnen.

https://developer.mozilla.org/en/using_remote_xul 
''' "Support for remote XUL has long been a potential security concern; support for it was disabled in Gecko 2.0. " '''
Very doubtful that the developers are going to ever reverse that decision, especially since they posted a workaround in that article and made it so that using a whitelist was possible via that extension.
Firefox 3.6.x is available here: 
http://www.mozilla.com/en-US/firefox/all-older.html

What does this mean? This page uses an unsupported technology that is no longer available by default in Firefox. And why cant i access my email?

This page uses an unsupported technology that is no longer available by default in Firefox.

I have received the same message and have been trying for 6 hours to sort it out with no success - the support system is rubbish.
I have been unable to access my work emails since I downloaded the new version of firefox
I can't even find out how to go back to the previous version instead of this one as I had no problems getting into my email account then

Since version 10 of firefox, I see, the "Remote XUL Manager" malfunctioning. Overlays on the XUL sites do not work anymore.

With version 9 of firefox my sites written in XUL have no problem.
Since version 10 of firefox, I see, the "Remote XUL Manager version 1.1.1" malfunctioning. Overlays on the XUL sites do not work anymore.

See:
* https://developer.mozilla.org/en/using_remote_xul
* Remote XUL Manager: https://addons.mozilla.org/firefox/addon/remote-xul-manager/

Cannot open Remote XUL manager under Developer - version 29.0.1 - nothing happens!

Cannot open Remote XUL manager under Developer - version 29.0.1 - nothing happens!

I found that after Firefox v29, a LOT of my settings and 
add-ons were changed / reset. Try this; 
'''''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]'''''
 While you are in safe mode; 
'''''Firefox Options > Advanced > General'''''. 
Look for and turn off '''Use Hardware Acceleration'''. 
Then check ALL of your settings. Browser and add-ons. Then restart.

Firefox asks to download like.php from sites with Facebook social button

So, I don't know if this is a problem with one site or Facebook in general, but everytime I access this site, a download window for "like.php" appears four times in a row. I've seen the same problems in this forums when I searched for it, but none of them provided a final answer. By the way, I formated my PC some weeks ago and the problem happened before it, so it can't be cache, history or something like that.
This may be about "Do Not Track" and/or other privacy extensions that I use. If it's not possible a solution now, could anyone explain why this happens? Is it because of the site, Facebook, Firefox, settings or extensions?

That should be an issue on the server.
Firefox should not ask you to download a PHP file. Instead it should ask you to download a HTML equivalent.
Try this: get the PHP file and open it. If you don't find < ?php in the file it means it's an issue on Firefox and you may want to clear your cookies.
Many site issues can be caused by corrupt cookies or cache. In order to try to fix these problems, the first step is to clear both cookies and the cache.
Note: ''This will temporarily log you out of all sites you're logged in to.''
To clear cache and cookies do the following:
#Go to Firefox > History > Clear recent history or (if no Firefox button is shown) go to Tools > Clear recent history.
#Under "Time range to clear", select "Everything".
#Now, click the arrow next to Details to toggle the Details list active.
#From the details list, check ''Cache'' and ''Cookies'' and uncheck everything else.
#Now click the ''Clear now'' button.
Further information can be found in the [[Clear your cache, history and other personal information in Firefox]] article.
If this doesn't work, maybe you'd need to reset Firefox.
The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: ''This will cause you to lose any Extensions, Open websites, and some Preferences.''
To Reset Firefox do the following:
#Go to Firefox > Help > Troubleshooting Information.
#Click the "Reset Firefox" button.
#Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
#Firefox will open with all factory defaults applied.
Further information can be found in the [[Reset Firefox – easily fix most problems]] article.
If this doesn't work too or you found < ?php then the issue may be on the server, which doesn't process CGI commands for the mimetype. That's an issue on Facebook and should be fixed soon.
Did this fix your problems? Please report back to us!

Firefox is having problems with php

Firefox 3.6.13
LAMP Server with PHP4
Hello, I have coded a website that contains php to delete a file. Here is my code:
if(file_exists('uploads/file.txt')){
if(!unlink('uploads/file.txt')){
$error = "ERROR: Could not delete file! Please try again or remove manually.";
}else{
$error = "Successfully deleted file.";
}else{
$error = "ERROR: Could not find file! Please try again or remove manually.";
As you can see, the code checks to see if the file exists, and if it does, it deletes the file or shows an error message if it can't. If it can't find the file, it shows the file not found error message. If I execute this script in IE, it will always work flawlessly, deleting the file and displaying the correct error message.
In Firefox, once in a while, I will get the "file not found" error message, but the file still gets deleted from the server. This is impossible with the way the script is written, as the file would never get deleted if that error gets displayed or vice versa.
The way the error is displayed is I have another line later in the page like this:
if($error){echo "$error ";}
I can reproduce it easily in FF but never in IE or other browsers.

I thought so, too, in re: caching. But the error never should have come up in the first place. Also, I can upload and delete the file over and over again. Most of the time the successful message is shown, sometimes the unsuccesful message is shown. Each time, the file gets deleted.
I've also set browser.cache.check_doc_frequency to 1 to try and recreate IE's "every visit to this page" setting, and deleted my cache. The error eventually comes back.
Let's just say that the error should never be seen unless someone goes in there and manually deletes the file via FTP or something, which is why it was added in the first place. The file is (normally) always there. It's almost like FF is ignoring the if/else and just running through it in sequence: checking if the file is there, deleting the file, and then maybe setting $error until it gets to the last one.

Why does firefox stop my virgin webmail compose message

I can open, read and delete my virgin webmail, but I can't do reply or foward. Virgin seems to depend on downloadig these functions for me to use, but is somehow prevented from doing so. I uninstalled AVG (!!!) and ran it again, but no different. AVG is reinstated now. Problem is still there. Isuspect the latest update last week caused this - everything was OK before.

Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions or if hardware acceleration 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.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

Webmail no longer works with Firefox 4.0.1

Hi,
I recently upgraded to FireFox 4.0.1 and I can no longer log into my Webmail account, i am presented with the following error message: "Remote XUL - this page uses an unsupported technology that is no longer available by default un Firefox. Please contact the website owners to inform them of this problem.
Secondly, Firefox no longer opens the following URL which is OK in older verisons of FireFox
Please help

n Firefox make sure you have at least two (2) tabs open - (Ctrl+T opens a new tab)
In the address bar of one tab, type "about:config" - minus the quotes, of course
You'll see a warning. Click "I'll be careful, I promise" and continue to the configuration page.
There's a search bar at the top. Type "js" - again, minus the quotes.
In the results you'll see pdfjsviewer.disabled with a vaule of false. Click it once, then right click it and choose Toggle to make the value "True".
Close that tab.
Click Tools>Options and go to the Applications tab
Locate Adobe Acrobat Document (or Portable Document File (PDF)) in the list and click the drop-down to select "Use Adobe Reader (in Firefox)". (Mine doesn't have that because I also have Acrobat Pro installed)
Click OK.
Click Tools>Addons to see that the Acrobat plugin is installed
Close and restart Firefox. PDFs should now open in a browser window with the Reader plugin.
Note: This doesn't work for me since the update to 23 and I should have the choice of Reader or Acrobat plugins. Firefox is trying desperatelt to FORCE users to use their crappy PDFJSViewer, which doesn't handle multimedis or forms PDFs.
As to the NPAPI and security risks, that's blown WAY out of proprotion. There are antivirus companies trying to sell their products to Mac users (who will NEVER need them) and they use this "urban legend" to bolster their case.

Since updating to Firefox 4.0.1 - many people are unable to open folders when logged into Eircom Webmail

Since updating to Firefox 4.0.1. many people report being unable to open folders in their Eircom Webmail. There are two versions of Eircom Webmail-Basic and Advanced- and the problem only occurs in Advanced version. When clicking on folder it 'greys over' but does not open to display contents.
'''Eircom Support say this is a Firefox problem.'''

See if this extension helps you.
https://addons.mozilla.org/en-US/firefox/addon/remote-xul-manager/

Cannot open eircom webmail with firefox 4

I cannot open emails on eircom webmail with Firefox 4. I have never had this problem with previous Firefox editions.
Sincerely
Gerrok

See if this extension solves that issue.
https://addons.mozilla.org/en-US/firefox/addon/remote-xul-manager/ Make sure you the section entitled '''More about this add-on'''.

Earthlink WebMail dead in Firefox after FlashPlayer update, rolling it back did not fix it

On 9/5/12 Adobe Flash player installed and ruined my computer. The main attack was to prevent Earthlink WebMail activity. It comes on screen, but clicking any link or on "Reply" causes the tab to disappear and you're back on your desktop. I rolled Flash Player back to version 10 but the damage was not fixed. Earthlink will not function on Firefox any more.

Have you tried following this troubleshooting page http://support.earthlink.net/articles/email/having-issues-with-webmail.php ?

Remote xul Firefox unsupport technology of Webmail PHP 5.5

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