Javascript pop up in Firefox on Yahoo Finance
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@ccwtech FWIW, i see similar behavior when viewing this page from both home and work. No JS popups though...
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What extensions are install on FF?
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None. I did a nuke and pave and fresh install of FF from Ninite.com.
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@danp That's good info. I'm wondering if you can just leave finance.yahoo.com up in the background. The pop-ups aren't always instant.
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@ccwtech Sure. I'll report back if anything unusual occurs.
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@ccwtech The page has been opened for about 15 mins without any popups. FWIW, the page eventually finished loading after between 10 and 15 mins.
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@danp said in Javascript pop up in Firefox on Yahoo Finance:
https://support.mozilla.org/en-US/kb/i-found-fake-firefox-update
LOL - that was my guess.
malvertising. - 
I see this from time to time, only when using firefox. Even on sites like Ars it happens.
They serve bad advertisements to you, and one of them gets you a popup in firefox. - 
@momurda said in Javascript pop up in Firefox on Yahoo Finance:
I see this from time to time, only when using firefox. Even on sites like Ars it happens.
They serve bad advertisements to you, and one of them gets you a popup in firefox.Do you think this is a flaw the malvertizers are taking advantage of in FF that's not in Chrome?
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The odd thing is still that only on that network does the .js pop up appear. I guess it comes down to the fact it's a known issue with FF and until they fix it you just have to have add ons.
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Setup a PiHole and see if the problem goes away

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@aaronstuder said in Javascript pop up in Firefox on Yahoo Finance:
PiHole
Looks interesting... I think I'm just going to have him use Chrome. Not that Chrome doesn't come with it's own problems, but at least a good work around for this issue.