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How can I check to see if a plug-in or something else is preventing me from accessing a certain app?

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Hello, Thanks in advance for any help. I'm an elementary teacher who is having trouble accessing my online grade book from my mac. The publisher if the gradebook app is Pearson. My school district technology dept. has not been helpful at all, but a family member who knows about these things helped me and many other teachers in my district discover that using Firefox and accessing "the old launch" of the gradebook app will allow mac users access. My problem is that I cannot even get into the "PowerTeacher" area (portal?) that leads me to the gradebook. It has been suggested to me that perhaps there is a plug-in I have that is conflicting somewhere along the way. Others have been successfully logging in, so I'm guessing it is something just with my version of Firefox or other... If someone can help me with this frustrating problem, I will be forever grateful!

Hello, Thanks in advance for any help. I'm an elementary teacher who is having trouble accessing my online grade book from my mac. The publisher if the gradebook app is Pearson. My school district technology dept. has not been helpful at all, but a family member who knows about these things helped me and many other teachers in my district discover that using Firefox and accessing "the old launch" of the gradebook app will allow mac users access. My problem is that I cannot even get into the "PowerTeacher" area (portal?) that leads me to the gradebook. It has been suggested to me that perhaps there is a plug-in I have that is conflicting somewhere along the way. Others have been successfully logging in, so I'm guessing it is something just with my version of Firefox or other... If someone can help me with this frustrating problem, I will be forever grateful!

All Replies (2)

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Hello,

  1. Click the ≡ Menu Button and choose Add-ons.
  2. Click Plugins on the left.
  3. Set "Default Browser Helper" to Never Activate.

The remainder of your plug-ins handle various web content. At best, I could see them causing problems when disabled, not the other way around. You probably meant extensions: see the last step at the bottom of this post.


  1. Update Firefox to the latest release
  2. Clear the Firefox cache
  3. Delete cookies from the site in question
  4. If that doesn't help, check if the problem occurs when you start Firefox with add-ons disabled (AKA Safe Mode).

Endret av Gingerbread Man

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Hello, also note in firefox safe mode, only the extensions of the add-ons are disabled and the default theme is used without a persona, plugins is not affected (extensions, themes, and plugins are all types of add-ons for Firefox). :-)

http://kb.mozillazine.org/Safe_mode Disable or remove Add-ons


thank you