???????????

(((((((((((((((

ауууу, тех поддержка?

ауууа

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

• switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
• do NOT click the "Refresh Firefox" button on the Safe Mode start window

• https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
• https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

• http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/
• http://www.7tutorials.com/4-ways-boot-safe-mode-windows-10

why not on rus?

You can use Google Translate if you have a problem with English text.

• https://translate.google.ru/

This forum mainly uses the English language and we use this Google service to sett what a question is about.

You can go this Russian forum :

• http://forum.mozilla-russia.org/

Quote:

If you upload a video on YOUTUBE about 30GB weight, it will send it there for 4-5 hours, but if you start in Incognito mode the load in 2 hours, but the downside is that it will be impossible to continue to download if it is interrupted for the use incognito not very convenient in this regard. How to solve the problem without incognito download speed?

In private browsing mode the disk cache isn't used and a separate cookie jar is used. Extensions may also behave differently.