I am amazed this never happened for so long but I noticed that Firefox is no longer being upgraded on my Ubuntu 14.04 LTS so I am stuck on version 36.
Apparently somehow linked to the flash player being outdated. A warning came up and I discovered the problem with Firefox.
Anyone knows how to update manually and why this happens?
UPDATE: 3 days later
thanks for your helpful answers! However, surprisingly, 1 hr after having posted my question and NOT HAVING CHANGED anything on the system yet the update came up automatically!
Completely weird, isn't it? Apparently nothing happens for at least 2 - 3 months and, then, just when starting to investigate on it the update comes more or less instantly.
Does this appear logic or normal to you? Or could that be a hint to malware or something comparable controlling my computer? Something known about such threats?
Thanks again to all of you!