Password Manager/Identity safe extension causing serious problems with Firefox
For the last month or so Norton Password Manger (NPM) extension for Firefox is causing serious problems when browsing. Pages are slow to load, images do not appear and pages are slow when scrolling. I get high RAM usage (3meg+) and high CPU usage (order of 30%-50%) If I remove the extensions (NPM, norton home page, norton safe search, norton safe web and norton family) everything works fine, but when I re-install the NPM extension all the problems return.
I removed all Norton extensions and it works fine. When I add back only password manager the CPU usage and RAM spikes and it is unusable slow. My usage is research so I frequently have many webpages (10-20 open) at a time.
My system is:
Windows 10 Pro 1903, build 18362.295. (Dell 8920)
NPM extension v220.127.116.11
Has anyone else seen this?