I have tried to shut down any extensions that I thought were causing the issue (Ghostery among them), but nothing changed.  I recently put Ghostery back on, and am about to try turning off Adblocker plus.  

Hi! I have an issue where my Firefox is opening multiple processes in my task manager. I am used to seeing 7, sometimes up to twelve if I have a bunch of tabs open, but for the last week it has now been spiking anywhere up to 25-30 being open in the task manager (and I will usually at the very most have 5 to 7 tabs open-TOPS!). My memory has been spiking to upwards to 30%, which is causing a slow down in my machine. I have tried to shut down any extensions that I thought were causing the issue (Ghostery among them), but nothing changed. I recently put Ghostery back on, and am about to try turning off Adblocker plus. When I looked at if I had any other hidden extensions, I saw that I have DuckDuckgo? ebay? and Bing? apparently on the extensions, but when I go into Firefox to remove them, they don't show up in the lists to turn off and on (I don't even use any of those as far as I know, so I don't know why they are even there). I use Avast antivirus, and it hasn't indicated that there is any virus, but then again, I suppose a good virus would know the work around. I am not really computer savvy, so perhaps I am making a mountain out of a molehill? If not, please help. This is very frustrating seeing so much memory go to Firefox!