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How to disable automatic downloads on Firefox

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I am a medical professional and use an electronic medical record website to submit electronic prescriptions. On this particular website, I keep getting automatic downloads of coupons that open up a PDF on my Mac. How do I stop the website from doing automatic downloads? I don't have this issue on other websites. In Chrome, I don't have this issue and only get the download if I specifically click on the coupon link. The website customer support said it's an issue with Firefox, not their website. How do I at least stop getting my Mac to open up downloaded PDFs automatically?

I am a medical professional and use an electronic medical record website to submit electronic prescriptions. On this particular website, I keep getting automatic downloads of coupons that open up a PDF on my Mac. How do I stop the website from doing automatic downloads? I don't have this issue on other websites. In Chrome, I don't have this issue and only get the download if I specifically click on the coupon link. The website customer support said it's an issue with Firefox, not their website. How do I at least stop getting my Mac to open up downloaded PDFs automatically?

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Log in to the website and check your options.


Go to the Mozilla Add-ons Web Page {web Link} (There’s a lot of good stuff here) and search for a good ad blocker.

I don't know if this would help.