On my desktop and my laptop and another laptop, for a few months now...something is slowing typing down to a literal crawl. I type a few words, and the cursor stops....nothing types, then after a few seconds....all I typed will show up at once...and in jumbled order. Quite often a banner will show at the very top of the screen saying "mozilla is not responding". I have shut all devices down, shut down my internet provided modum, then turned all back on (like a re-boot" but that doesn't help. At first is was only on Facebook, now it is everywher I type....even right here... I type 2-3 words, it stops and a few seconds later....all the letters show up but jumbled. I have check for Mozilla updates and have the current version. I have checked Window 10 and have teh current version. I have called my ISP and they have checked and all is fine. The only thing that flags...is that banner that says Mozilla not responding. It has taken me 4 minutes to type this because I have to wait for it to show up and then correct errors it made . I have replaced batteries in keyboard and mouse. Any ideas why Mozilla is not responding?