javascript - stop the web page from loading programmatically - Stack Overflow

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I want to create an extension to firefox using addon builder that stops users from visiting a malicious website; When I see a URL that is suspicious, I stop the page from loading and ask the user if he really wants to visit the site. How could I implement that? I am expecting the functionality programmatically, so that I can make an extension.

I want to create an extension to firefox using addon builder that stops users from visiting a malicious website; When I see a URL that is suspicious, I stop the page from loading and ask the user if he really wants to visit the site. How could I implement that? I am expecting the functionality programmatically, so that I can make an extension.

• javascript
• firefox-addon
• firefox-addon-sdk

Share Improve this question Follow edited Nov 16, 2019 at 1:48 Cœur 38.7k2626 gold badges203203 silver badges277277 bronze badges asked Jul 24, 2012 at 5:58 MmhMmh 41711 gold badge66 silver badges1616 bronze badges

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3 Answers 3

Sorted by: Reset to default 9

if(site.is_malicious)
   window.stop();

There is an event called beforescriptexecute supported my mozilla ..... Have a look , I think it will work the job for you. But what you desire can be done something like this:

var r=confirm("Are you sure you want to visit this site ?"); 
if (r==false) { window.stop(); }

You are creating a FF extension right? Why not use greasemonkey or so? You can execute a script BEFORE the page loads(on greasemonkey). when that script is called, you can potentially stop the pageload and throw an error message.

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