Closed
Bug 934083
Opened 11 years ago
Closed 10 years ago
Webpage able to lock up browser with neverending "Stay on page/Leave Page" popups
Categories
(Firefox :: Untriaged, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 636374
People
(Reporter: register, Unassigned)
Details
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:25.0) Gecko/20100101 Firefox/25.0 (Beta/Release) Build ID: 20131025151332 Steps to reproduce: Landed on this very spammy page here. http://fbi.gov.id831941135-6697228447.h9615.com/?flow_id=3728&773430=11794/case_id=77244 Actual results: When trying to navigate away or close browser, you will be forced into an unending loop of confirming whether to "Stay on page" or "Leave Page" popup dialogs. The only option is to force quit your browser to escape the cycle. Expected results: Webpages should not be allowed to create unending confirmations that lock up the UI.
Comment 1•11 years ago
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Confirmed, Had to force-close Win7 x64 with task manager. Setting to new.. That looks like a malicious page but I'm sure any harm was done visiting it other than having to kill the browser. Tested using latest Nightly m-c build on win7 64
Status: UNCONFIRMED → NEW
Ever confirmed: true
OS: Mac OS X → All
Hardware: x86 → All
Comment 4•10 years ago
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Same issue with this address: polizei.de.id982380162-5824263999.d2178.com/?flow_id=2554&274112=77811/case_id=96401
Comment 5•10 years ago
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The issue comes from multiple iframes which all have the following in the iframe[srcdoc] attribute (message removed): <script> window.onbeforeunload=function(env){ return '…';} </script> Quick workaround: When on the page, open the developer toolbar (Shift + F2), and type the following: pagemod remove element iframe That at least allows to navigate away from the page and/or report it as abusive (from the help menu).
Updated•10 years ago
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Status: NEW → RESOLVED
Closed: 10 years ago
Resolution: --- → DUPLICATE
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Description
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