How to detect back browser event in javascript?

How to detect browser event in javascript?
Not working for me. Since i love mozilla to use.
Working in IE.
function HandleBackFunctionality(event)
if(window.event)
alert("Browser1");
if(window.event.clientX < 40 && window.event.clientY < 0)
alert("Browser back button is clicked...");
else
alert("Browser refresh button is clicked...");
else
alert("Browser2");
if(event.currentTarget.performance.navigation.type == 1)
alert("Browser refresh button is clicked...");
if(event.currentTarget.performance.navigation.type == 2)
alert("Browser back button is clicked...");
}

Firefox doesn't have a catch-all event object (window.event), but you can create event listeners for the objects of interest. I don't know whether the toolbar is one of those; probably not, since why should web pages be able to see what you are doing on the toolbar??
If we discard the idea of looking for events outside of the page and focus on what is happening inside the page, have you looked at this:
https://developer.mozilla.org/en-US/docs/Web/API/Window.onbeforeunload

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Murray --- ICQ 71997575
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I just want to add a post in clarification -
1. I was using EasyFaq (a very nice extension from
ValleyWebDesigns) in a
non-standard way. Had I used it out of the box, so to speak,
I would not
have had these problems.
2. To reiterate, the problems I were trying to solve were, in
no way,
related to standard use of EasyFAQ.
3. My problems were solved both by following the suggestions
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and with help from E. Michael Brandt.
4. Indeed, I had some invalid code on the page, and it was
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Murray --- ICQ 71997575
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"Murray *ACE*" <[email protected]> wrote
in message
news:enheq7$po6$[email protected]..
> You should know by now that I practice safe diddling.
>
> --
> Murray --- ICQ 71997575
> Adobe Community Expert
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>
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http://www.projectseven.com/go
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> "Gary White" <[email protected]> wrote in message
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>> On Wed, 3 Jan 2007 11:56:22 -0500, "Murray *ACE*"
>> <[email protected]> wrote:
>>
>>>But I'm still diddling.... 8)
>>
>>
>> Be sure to use protection!
>>
>> Gary
>
>

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