Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache

Press the <Alt> or <F10> key to bring up the tool bar. Followed by;

Windows; Tools > Options Linux; Edit > Preferences Mac; application name > Preferences

Then Advanced > Network > Cached Web Content: Clear Now

and

• Remove Cookies

Press the <Alt> or <F10> key to bring up the tool bar. Followed by;

Windows; Tools > Options Linux; Edit > Preferences Mac; application name > Preferences

Then Privacy. Under History, select Firefox will Use Custom Settings. There is a button on the right side called Show Cookies.

If there is still a problem, Start Firefox in Safe Mode {web link} While you are in safe mode; Press the <Alt> or <F10> key to bring up the tool bar. Followed by;

Windows; Tools > Options Linux; Edit > Preferences Mac; application name > Preferences

Then Advanced > General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites and see if there is still a problem. Then restart.

Thanks, it's been an issue for a while.

Glad to help.

Hi JZeroX ,

Sorry to bother you after your Firefox problem has been resolved, but I am wondering if you would be able to help us.

Could you first of all search on the computer for all copies of the following files.

1. nptnt2.dll
2. libinject2.dll,
3. libredir2.dll

The first file does appear to have been on your computer. Possibly you will also have the other two. Search Tips

• These instructions may help http://kb.mozillazine.org/Show_hidden_files_and_folders
• Also note Windows often hides the last part of at least some file names you may need to set Windows to show the full file name. The part of the file name after the last dot is often referred to as the file extension.
  See http://windows.microsoft.com/en-us/windows/show-hide-file-name-extensions#show-hide-file-name-extensions=windows-7

guigs2 from the Firefox HelpDesk will probably be following up on this post, but being paid staff is only available in working hours.

For now please try to find the files but do not take any other action, as you appear to have the file disabled, and we an not be certain yet that it is a bad copy.

Perhaps you could post back to say whether you are able to search for these files and whether or not you have found them.

Thanks in advance, John

Background Information

You seem to have a file installed that apparently is malware and Firefox engineers are trying to get hold of a copy of the file. They can study it to confirm it is bad,then pass the information on to the sites that detect malware.

Briefly you kindly provided troubleshooting information you posted this question

• https://support.mozilla.org/en-US/questions/1005843
• The information may be viewed using the link labelled More System Details at the top right of the question.
• That includes shown as a Modified Preference dom.ipc.plugins.enabled.nptnt2.dll: False

We are very interested in the file nptn2.dll some of those are apparently bad files that cause problems.

There is more information in a contributors thread started by staff member Cheng Wang.

• Higher crash rates in 30? /forums/contributors/710406