Frequent crash of the Shockwave plugin in Firefox

Question

Mobile Internet

In the fall, I gave my mother to the village my computer, which was left after the upgrade. After a while, she connected the Internet - and that's when the problems with the flash began. A flash plugin used to play videos (for example, on YouTube) crashes very often. What's the matter?
On the forums they write about the lack of RAM. There is enough RAM, I'm sure, everything worked fine for me.
Viruses, most likely, also have nothing to do with it: a licensed Kaspersky is installed.
There is nothing suspicious about add-ons and plugins - only those that I installed myself, plus a few that were installed at my direction and under my remote guidance.
The main version at the moment is this: this village of theirs is located almost on the border of the coverage of a mobile operator, there is an unstable telephone connection and, accordingly, the Internet. And he's weird in general. Downloading, for example, a megabyte file via HTTP or via instant messenger does not work. Although pictures are loaded, audio clips and videos of a larger volume still usually play. So I think that the plugin may crash because it is trying to take a stream for video over the Internet, and suddenly it is somehow badly broken off with this.
I would be grateful for hints, as far as possible and likely, and how to check it.
Experimentation is difficult, unfortunately: mom is a noob, it’s far to go to her, it’s impossible to send her a file.

Answer 1

Mozilla support recommends either updating the Flash Player plugin or downgrading to Flash Player version 10.3. Updating the plugin has no effect (it crashes with the latest version - 11.6.602.168), so try rolling back to Flash Player 10.3 or disable the Flash plugin altogether. See also:

• support.mozilla.org/en/questions/931182
• support.mozilla.org/en/questions/942300