I’m fed up of Firefox hassles. Despite getting the latest chromified 29.0.1 looking like good old 28, I have been beset with Flash hangs* and print scaling problems. So I have taken the nuclear option and I am now running longer-term support Firefox ESR. Windows users can download the portable version for their language here. BOOM!
*Quick update: Flash problems persist which suggests this might be partly Adobe’s fault. If you too are experiencing browser problems, try updating Flash, which might or might not work, so good luck. What a total pain. Adobeee!!! Mozillaaa!!! Someooone!!!