I tried creating a new profile a month ago or so but that did not solve thhe problem.
Meanwhile it seems to me that the problem only occurs if the JDownloader (which is not set as a download manager in the FlashGot options, FDM is) is active and uses a significant portion of the bandwidth.
When this is not the case, FF runs "normal" at low CPU load.
Meanwhile it seems to me that the problem only occurs if the JDownloader (which is not set as a download manager in the FlashGot options, FDM is) is active and uses a significant portion of the bandwidth.
When this is not the case, FF runs "normal" at low CPU load.