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Whenever I go to what seems like any web page, a whole slew of these errors appear:

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Hi, when I go to a web page and open the Error console, there are many, many of these error messages.

Timestamp: 12/19/2012 11:08:28 PM Error: [Exception... "'JavaScript component does not have a method named: "onStatusChange"' when calling method: [nsIWebProgressListener::onStatusChange]" nsresult: "0x80570030 (NS_ERROR_XPC_JSOBJECT_HAS_NO_FUNCTION_NAMED)" location: "<unknown>" data: no]

When I first saw it, I thought it was a jquery thing because I was developing a website using Responsive Design. But I removed all the jquery and they still remained. I later discovered that they show up on other web sites too. Is there a way to fix this? I like FF's javascript error console better than other browsers, but now it's impossible to use.

Hi, when I go to a web page and open the Error console, there are many, many of these error messages. Timestamp: 12/19/2012 11:08:28 PM Error: [Exception... "'JavaScript component does not have a method named: "onStatusChange"' when calling method: [nsIWebProgressListener::onStatusChange]" nsresult: "0x80570030 (NS_ERROR_XPC_JSOBJECT_HAS_NO_FUNCTION_NAMED)" location: "<unknown>" data: no] When I first saw it, I thought it was a jquery thing because I was developing a website using Responsive Design. But I removed all the jquery and they still remained. I later discovered that they show up on other web sites too. Is there a way to fix this? I like FF's javascript error console better than other browsers, but now it's impossible to use.

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The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

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it's something to do with BillG and his poxy settings on files i reckon.

Plus the ceaseless updating of ffox instead of sticking to a stable engine only changing say once per year on 1st April. -keep the geeks away

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What if you can't reset the Firefox settings because you don't want to go back and reset everything you just removed to solve a small line of code setting.

Stop being lazy and killing a fly with a nuclear weapon! Take a look at the code line, find the issue, resolve the line, not reset the entire browser! (Pfft! Some help resolution this is!)