The version of the plugin 11.3 was released on June 8th. Since then, Adobe has not followed a single message about whether a new version of the plugin will be released in which the problem with Firefox will be fixed. This statement followed from the developers of the browser about this: «Adobe and Mozilla are jointly working on diagnosing and correcting this problem».
Mozilla also on the support page left a message that can help in solving the problem with Flash Player. One of the tips is to delete or disconnect the expansion for Firefox called RealPlayer Browser Record — There is even step -by -step instructions on the site on this subject. If this does not work, then the developers suggest installing the previous version.