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TypeError: document.getElementById(myId) is null This message keeps popping up - even after i have closed it repeatedly... simple help please?

liphurst
liphurst
Posted

When im just browsing on the internet, this message keeps popping up - no matter how many damn times i close it! I don't understand what plug -ins (etc etc) means, so please could you answer in the simplest way possible?

Chosen solution

by jscher2000

If this happens on multiple different sites, it could be caused by an add-on that is trying (failing?) to access the pages or modify itself in response to the pages.

You might just disable all nonessential add-ons here and then restart Firefox and see whether that helps:

orange Firefox button or classic Tools menu > Add-ons > Extensions category
orange Firefox button or classic Tools menu > Add-ons > Plugins category

Read this answer in context 14

Helpful replies

Thanks for the reply, it seemed to have worked after i managed to fully close 'Snap.do' - this was add on from firefox itself.

Go to answer 9

Additional System Details

This happened

Every time Firefox opened

This started when...

Snap.do downloaded?

Installed Plug-ins

  • Pando Web Plugin
  • Next Generation Java Plug-in 10.7.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • SiteAdvisor
  • 5.1.10411.0
  • McAfee MSC FF plugin DLL
  • Unity Player 3.5.0f6
  • Nexon Game Controller
  • Shockwave Flash 11.1 r102
  • iTunes Detector Plug-in
  • Battlefield Play4Free Updater
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.1
  • NVIDIA 3D Vision Streaming plugin for Mozilla browsers
  • NVIDIA 3D Vision plugin for Mozilla browsers

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20100101 Firefox/13.0.1

More Information

Close
jscher2000
jscher2000
  • Top 10 Contributor
1106 solutions 10430 answers
Posted

Chosen Solution

If this happens on multiple different sites, it could be caused by an add-on that is trying (failing?) to access the pages or modify itself in response to the pages.

You might just disable all nonessential add-ons here and then restart Firefox and see whether that helps:

orange Firefox button or classic Tools menu > Add-ons > Extensions category
orange Firefox button or classic Tools menu > Add-ons > Plugins category

liphurst
liphurst
Posted

Helpful Reply

Thanks for the reply, it seemed to have worked after i managed to fully close 'Snap.do' - this was add on from firefox itself.

jscher2000
jscher2000
  • Top 10 Contributor
1106 solutions 10430 answers
Posted

Thank you for posting the solution. The snap.do browser add-ons are not official Mozilla products. Normally, you would need to install them after you install Firefox. However, if the Firefox installer finds add-ons already on your system, it might import them, so that could explain why it appeared to be included.