Syed Jahanzaib Personal Blog to Share Knowledge !

September 19, 2012

Lotus Notes Webmail issue with Firefox

Filed under: IBM Related — Tags: , — Syed Jahanzaib / Pinochio~:) @ 5:01 PM

How to make your IBM Lotus iNotes Webmail working in Firefox

Recently after firefox upgrade, my company webmail was not working in firefox. It seems that the new security features in Mozilla Firefox prevent Lotus Notes/Domino Webmail from working. Here’s how to get that functionality back.

First: The problem that you see looks like this as It states on the webmail screen simply

A problem has occurred which may have caused the current operation to fail.

The problem seems to be that FIREFOX has security-blocked your webmail.In order to unblock it, you need the Remote XUL Manager extension.

To get it, browse to:

and click Add to Firefox.

As showed in the image below . . .

You’ll be prompted to install the extension and then you’ll be told to restart Firefox.

After the restarting the FIREFOX, the Remote XUL Manager will appear in the Tools / Web Developer menu.

Note: To get to the menu in Firefox, press the Alt Key once.

Now again open the mail , this time you will see the error again, don’t worry, its time to remove it.

Goto Tools / Web Developer / Remote XUL Manager

As showed in the image below . . .

An empty dialog box will appear.

Click Add.

A text input box will appear. Type your mail domain in here and click Ok.
If you use several domains, you may want to add the others in now.

When you’ve finished adding domains, click the X on the top right of the Remote XUL Manager box to close it. Don’t worry, it’s saved.

Now, you should be able to refresh the page or simply put your cursor in Firefox’s address bar and press Enter – and your mail should appear.

As showed in the image below . . .


Syed Jahanzaib
IS Dept.
AGP (Pvt) Ltd.


  1. Hey, thanks for this. This works a treat.

    Comment by Tim — January 21, 2014 @ 7:45 AM

  2. With the beginning of 2014 (give or take) my Mail-Inbox wasn’t loading with ui=dwa_lite anymore. ui=webmail and ui=dwa_full are not working either.
    I tried your trick and now it works again.
    Want to have a laugh: the mandatory web security training in my company can only be started when allowing man-in-the-middle attacks !

    Comment by — January 25, 2014 @ 3:45 PM

  3. cool champ works fine

    Comment by Arun — April 30, 2014 @ 4:12 PM

  4. Brilliant! Worked perfectly! (Too bad IBM can’t provide information like this…)

    Comment by driptah — July 23, 2014 @ 6:59 PM

  5. Thanks Jahanzaib, it really works and you explained so simply…great!

    Comment by Saleem — October 25, 2014 @ 7:05 PM

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