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'The operation has been cancelled due to restrictions in effect on this computer' prompts when firefox is started.

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When I tried to open Firefox, it displayed a pop-up saying that 'The operation has been canceled due to the restrictions in effect on this computer. Please contact system administrator'. Even if I logged in as system administrator and tried to start Firefox, it showed me the same pop-up. The problem started from today morning. Yesterday, I was using Firefox and it worked for me. But for quite few days even though if I closed the window it was still running. Next time if I need to start Firefox, I need to close it from the Task manager and then need to start it. Not sure how to fix this problem. Now, I uninstall ed the older version (3.5.0 not sure) and updated with 3.6.3. Then also it shows me the same pop-up.

This happened

Not sure how often

== Yesterday (04-May-2010)

When I tried to open Firefox, it displayed a pop-up saying that 'The operation has been canceled due to the restrictions in effect on this computer. Please contact system administrator'. Even if I logged in as system administrator and tried to start Firefox, it showed me the same pop-up. The problem started from today morning. Yesterday, I was using Firefox and it worked for me. But for quite few days even though if I closed the window it was still running. Next time if I need to start Firefox, I need to close it from the Task manager and then need to start it. Not sure how to fix this problem. Now, I uninstall ed the older version (3.5.0 not sure) and updated with 3.6.3. Then also it shows me the same pop-up. == This happened == Not sure how often == Yesterday (04-May-2010)

Alle antwoorden (2)

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By googling this site was found:

http://techsalsa.com/solution-to-this-operation-has-been-...

You can try following solutions and see which one fix it for you.

Solution 1: • Go to Control Panel -> Add Remove Programs, click on Set Program Access and Defaults. • Open up the configuration whichever is selected and change the default web browser to something else.

Solution 2: If you use older versions of IE then upgrade it to the latest one.

Solution 3: Open registry editor, find HKLM\SOFTWARE\Classes\htmlfile\shell\open\command change its value to "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE" -nohome

Solution 4: • Open registry editor and search (Ctrl + F) for the value nocontrolpanel. • Change its value from 1 to 0.


Do mention the solution that worked for you.

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Do a malware check with a few malware scan programs. You need to use all programs because each detects different malware.

http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware http://www.superantispyware.com/ - SuperAntispyware http://www.safer-networking.org/en/index.html - Spybot Search & Destroy http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page .......... See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked