Mozilla Addon Syncing

I installed idm extension on firefox for windows. Since I was logged in to the firefox with firefox account, when I tried logging in to the firefox on linux this idm extension got enabled over there as well. Since IDM software is only available for windows it doesn't make any sense to have that extension on linux. So I removed it on linux firefox. What syncing did is it removed it on firefox on windows as well. Now I want it on firefox on win but not on firefox on linux. What should I do?