I've noticed lately that after searching for a product on Google, ads for the same thing pop up on Facebook and Instagram. I'm wondering if my personal data is being tracked and if there's anything I can do to protect myself, like using browser extensions or changing my settings.
Yes, what you're seeing is exactly cross-platform tracking and unfortunately it's basically impossible to avoid it completely! But you can do quite a lot: use an extension like uBlock Origin to block trackers, enable "Do Not Track" mode in your browser settings, and most importantly go into the privacy settings on Facebook and Google to limit personalized ads (like disabling behavior-based interests). Also consider using a more privacy-focused browser like Firefox or Brave that block a lot of trackers by default! It's not total protection but at least it significantly reduces what they collect about you.
The most effective thing you can do right now is disable cross-platform tracking in Google and Meta's privacy settings. Go into your Google account settings, Privacy section, and limit ad data collection; same thing for Facebook and Instagram in their privacy settings. It doesn't eliminate everything, but it significantly reduces what they share between platforms.
Then yeah, extensions help. uBlock Origin blocks a lot of trackers, Privacy Badger is more targeted at specific trackers. I noticed a clear difference after installing that kind of stuff: fewer targeted ads, especially that creepy one that follows you everywhere. Also add a DNS that blocks trackers (like Quad9) instead of using your internet provider's.
The last thing is use incognito mode when you're doing sensitive searches - it doesn't block everything but at least it doesn't save your history locally. And honestly, consider using a more privacy-focused browser like Firefox with tight settings, maybe with a VPN if you really want to isolate yourself. None of these methods is a total solution, but together they make a real difference in reducing the tracking you see every day.
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