1258217 - Error message when opening a new tab

Status: RESOLVED INVALID

(Toolkit :: Add-ons Manager, defect)

Description

[Joachim Schmidt]

Attachment: Mozilla Bug.PNG

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0
Build ID: 20160315153207

Steps to reproduce:

opening a new tab


Actual results:

new tab opens with the following error message:
XML-Verarbeitungsfehler: Fehler beim Verarbeiten einer Referenz auf eine externe Entität Adresse: jar:file:///C:/Program%20Files%20(x86)/Mozilla%20Firefox/omni.ja!/chrome/toolkit/content/global/netError.xhtml?e=fileNotFound&u=chrome://browser/content/newtab/newTab.xul&c=UTF-8&f=regular&d=Die%20Dateien%20unter%20chrome://browser/content/newtab/newTab.xul%20konnten%20nicht%20gefunden%20werden. Zeile Nr. 10, Spalte 3:
  %netErrorAppDTD;
--^


Expected results:

new blank tab should open

Comment 1

[Kohei Yoshino [:kohei]]

Looks like you have an extension modifying the new page. Try Safe Mode: https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

Comment 2

[Loic]

Yes, try safe mode then new profile too.
https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

Comment 3

[Joachim Schmidt]

Sorry guys, I'm only a normal mozilla user and therefore hints like "try safe mode" or "safe new profile" don't tell me anything. On saturday mozilla worked normal and on sunday immediately the problem occurred. Therefore I assume that somebody has changed a feature within mozilla which should be corrected again.
Regards
Joachim

Comment 4

[Loic]

Safe mode and new profile are basic troubleshooting actions, you can check the FAQ, it's pretty easy to follow the instructions to debug an issue with your current profile.

Comment 5

[ovidiu boca[:Ovidiu]]

Please see the links in comment 1 and comment 2, there you have steps how to do that things. 
Thank you for your time.

Comment 6

[Joachim Schmidt]

Thanks for your hints. I restarted mozilla in safe mode and the problem didn't appear. Then I deactivated one add-on after the other and found out that "GMX mail check" causes the problem.

Comment 7

[Loic]

This add-on has been updated earlier this month:
https://addons.mozilla.org/en-US/firefox/addon/gmx-mailcheck/

Comment 8

[:shell escalante]

did the new version fix