On my site we noticed that some of our users had some JavaScript problems which was affecting content editing. After a bit of nosing around we found the problem was a Firefox extension called The Browser Highlighter.
This extension was created by eBay and it injects some JavaScript into the page which can affect the JS in your site. You can view this JavaScript in Firebug (it is in the script tag added just after the head tag)
What follows is a means of detecting this extension so you can protect your code from it.
Unfortunately, Mozilla Firefox does not provide an API into detecting browser extensions, but there is a work around.
If the extension injects a graphic into the page (which this one does), it does so by referencing it from the chrome protocol.
i.e.
chrome://shim/content/compareLang-1/eBayCompareIcon_yellow.gif
as opposed to the normal http protocol
So all you have to do is reference this image and place an onload event on it. If the event fires then the extension is installed.
So you can have the following script
<script>
var browserHighlighterPluginInstalled = false;
function alertUser() {
alert("You have The Browser Highlighter extension installed");
}
</script>
<img src="chrome://shim/content/compareLang-1/eBayCompareIcon_yellow.gif" onload="alertUser();" />
You may also want to include instructions on how to remove the extension (Tools -> Add-ons -> Extensions -> Disable).
PS This extension has not been getting very good reviews, please feel free to add your own...
https://addons.mozilla.org/en-US/firefox/reviews/display/11808
This extension was created by eBay and it injects some JavaScript into the page which can affect the JS in your site. You can view this JavaScript in Firebug (it is in the script tag added just after the head tag)
What follows is a means of detecting this extension so you can protect your code from it.
Unfortunately, Mozilla Firefox does not provide an API into detecting browser extensions, but there is a work around.
If the extension injects a graphic into the page (which this one does), it does so by referencing it from the chrome protocol.
i.e.
chrome://shim/content/compareLang-1/eBayCompareIcon_yellow.gif
as opposed to the normal http protocol
So all you have to do is reference this image and place an onload event on it. If the event fires then the extension is installed.
So you can have the following script
<script>
var browserHighlighterPluginInstalled = false;
function alertUser() {
alert("You have The Browser Highlighter extension installed");
}
</script>
<img src="chrome://shim/content/compareLang-1/eBayCompareIcon_yellow.gif" onload="alertUser();" />
You may also want to include instructions on how to remove the extension (Tools -> Add-ons -> Extensions -> Disable).
PS This extension has not been getting very good reviews, please feel free to add your own...
https://addons.mozilla.org/en-US/firefox/reviews/display/11808
Comments
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I have never thought that there weren't any need in large initial investment.
Nowadays, I'm happy and lucky , I started take up real income.
It gets down to select a proper partner who utilizes your money in a right way - that is incorporate it in real deals, and shares the profit with me.
You can get interested, if there are such firms? I'm obliged to answer the truth, YES, there are. Please get to know about one of them:
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I have never imagined that there weren't any need in large starting capital.
Now, I feel good, I started to get real money.
It gets down to select a correct companion who utilizes your funds in a right way - that is incorporate it in real business, parts and divides the profit with me.
You may get interested, if there are such firms? I have to tell the truth, YES, there are. Please be informed of one of them:
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