Diễn đàn hỗ trợ Firefox

I had the Capital One Shopping extension show up on my extensions list, I think from maybe a misclick while checking out online, and so I uninstalled it yesterday on my laptop because it was slowing my browser down and throwing annoying popups. I didn't and don't trust an extension like this with my browsing data. So I was concerned today when I pulled up a Firefox window on my desktop PC (same Firefox account) and a second tab opened up automatically with the Uninstall Survey for this extension. I filled that out yesterday when I uninstalled the extension. I checked, and the extension has been uninstalled--it no longer appears on my extensions list on any device. I assume that it's just that this is the first time I've opened Firefox on the same account on a different device, and Firefox is somehow repeating the prompt to open the survey tab. But I've never had this happen before and I don't love that it's a tracking extension that did it. Do I have anything to be concerned about here? Or is this a normal fluke of Firefox accounts on multiple devices and not the fault of this extension?

Forum users : Gmail on my Windows 10 PC runs very slowly when the Lastpass extension is enabled. This ONLY happens with Gmail. In fact I get an alert that Lastpass is slowing down Firefox. Gmail is fine when the extension is removed. Has anyone else encountered this problem? If so have you found a solution other than removing the Lastpass extension?

Thanks!