So I'm trying to buy a new blender because my old one literally started smoking when I tried to make a smoothie this morning lol. I've been looking at those fancy Ninja ones on Amazon and the price is $189 right now but I swear it was $165 like two days ago. It’s so frustrating how they just change it whenever they want! My friend told me there are these "extensions" you can put on your browser—I think I use Google Chrome, the one with the colorful circle—that show you the history of the price? Or tell you if it's cheaper at Walmart or Target?

I'm really not a tech person at all so I have no idea where to start or if these are even safe to use. Like do I have to pay for them? My logic was that if I can save $30 then it's worth it but I dont want to accidentally download a virus or something that tracks my credit card. I've heard names like Camel something? Or maybe Honey? But I don't know if they actually work for Amazon specifically or if they just give you coupons which usually dont work anyway. I was trying to look it up on Google but there are so many different ones and they all look kind of official and I got overwhelmed and just closed the tab.

I am really confused about how it even stays on the page. Does it just pop up? Do I have to click something every time I look at a product? I'm worried it's gonna slow down my laptop because it's already a bit old and the fan makes a loud noise sometimes when I have too many things open. I dont want to break my computer just to save a few bucks on a blender.

• something that shows if the price is actually low right now or if it was cheaper last week
• something easy to install because I'm basically a toddler with computers
• is it free or do they take a cut of what you save?

I'm in Cincinnati and I really need to get this ordered by Friday so it gets here before my sister visits because she's super into health stuff and I promised her we'd make green juices. I have about $200 set aside for this but obviously I'd rather spend $150 if I can. If anyone could explain how these work like I'm five years old that would be great because I am totally lost and dont want to get ripped off by the Amazon algorithms...