So my sisters big 30th birthday is coming up in three weeks and she really wants this expensive skin set from Sephora but it is like 150 dollars and I literally cannot afford that right now since I just paid my security deposit on a new apartment in Chicago. I heard from a coworker that you can get these things called browser extensions that like watch the price for you and send an alert when it goes on sale but I have never used one before and honestly they kind of scare me like will they steal my credit card info or see my passwords? I am so bad with tech stuff and I really dont want to download something that is a scam or a virus. I checked the site today and the price is still super high and I am starting to panic because I need to order it soon so it gets here in time for the party on the 15th. Does anyone know what the best ones are that actually work for sephora specifically and arent too hard to set up for someone who knows nothing about computers?

• is there a safe one
• do they cost money to use
• do they work on a macbook

I am just really worried I am gonna miss a sale and then I wont have a gift for her since my budget is so tight right now. Are there specific ones people use for makeup or are they all just for amazon? I have no idea where to start so sorry if this is a basic thing everyone already knows...