Firefox wildly dumb when opening 100500 tabs, question mark?

Question

Mozilla Firefox

In general, from a certain number of open tabs, the govnolis starts eating 100% of the core and wildly slows down with any action, sometimes rendering is buggy, and from version to version this number is getting smaller. Of the extensions, there was only adblock. What to do with this nightmare?

Answer 1

Most likely, some one tab with a tightly hung flash or java is eating a percentage, try to track it through https://addons.mozilla.org/en-US/firefox/addon/lea... or another analogue on which tabs it spends more of all resources.

Answer 2

Do not open 100500 tabs. Try chrome/opera/yandex/explorer.