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Firefox Blocks All Flash Content by Default

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firefox flash blockedIf you still use Flash elements on your website, despite the fact most mobile devices no longer display it, you have just received yet another sign that the end of Flash is near… Firefox will no longer display Flash content within their browser by default.

firefox flash block

This change also explains why you may have noticed Flash being blocked in Firefox very recently, with many warnings popping up asking if you would like to enable it for some sites.

New vulnerabilities in Flash recently came to light after the Hacking Team was hacked and it became known that they were utilizing Flash exploits that had not been previously known as an exploit and that had not been fixed.

Firefox notes that they may re-enable it if a secure version of Flash becomes available in the future.

Google Chrome also recently announced changes to how they will display Flash within their browser.  They will automatically pause any autoplay Flash elements.  However, they haven’t announced whether they will also block all Flash elements as Firefox is doing.

But if you still utilize Flash elements, especially for logos or other site critical components, you should be aware that Firefox will no longer display them.

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Jennifer Slegg

Founder & Editor at The SEM Post
Jennifer Slegg is a longtime speaker and expert in search engine marketing, working in the industry for almost 20 years. When she isn't sitting at her desk writing and working, she can be found grabbing a latte at her local Starbucks or planning her next trip to Disneyland. She regularly speaks at Pubcon, SMX, State of Search, Brighton SEO and more, and has been presenting at conferences for over a decade.

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