"By exploiting this vulnerability, an attacker can gain access to things like passwords and cookies, enabling him to access a user's private account data on a website," Mozilla said in its blog.
SSL 3.0 will be disabled by default in Firefox 34, Mozilla said. The code to disable the security protocol will be available shortly via Mozilla Nightly, an in-development version of Mozilla's browser.
Mozilla also said that Firefox 35 will support a generic Transport Layer Security (TLS) downgrade protection mechanism called SCSV (Signaling Cipher Suite Value), as a precautionary measure.
Servers supporting SCSV can prevent attacks that rely on insecure fallback.
The Poodle bug, which stands for Padding Oracle On Downloaded Legacy Encryption, was recently uncovered by Google researchers. It could allow hackers to steal data from within an encrypted transaction.
© Thomson Reuters 2014
For the latest tech news and reviews, follow Gadgets 360 on X, Facebook, WhatsApp, Threads and Google News. For the latest videos on gadgets and tech, subscribe to our YouTube channel. If you want to know everything about top influencers, follow our in-house Who'sThat360 on Instagram and YouTube.