OPTIONS
      GENERAL
          TABS
               uncheck the box "open links in tabs instead of new windows" 

Unchecking a certain option in firefox breaks downloading for certain homepages: =================================================================== Did a little research. This problem has appeared with rel/ver 79. The problem shows up as soon as the check mark is removed in the options. Which check mark? Well: TOOLS OPTIONS GENERAL TABS uncheck the box "open links in tabs instead of new windows" Use the instructions below. Took me quite a while to find what/where the problem is. The following is just an example - you can try downloading any firmware for any other ASUS product! If you are interested - just try the following sequence of "commands": Go to the homepage of "ASUS.COM" Position on the "service" option. Click on the "service and support" option in the drop-down menu. Select the pic showing i.e. a router (wlan and networks). Select "wireless router" as the product range (first box). Then select i.e. "RT-AC66U" as product model (second box). Then select "Drivers & Tools". Then select "BIOS and FIRMWARE". AND then try downloading. This is where MY browser starting with rel 79 just blinks and inserts a little notice which reads i.e. "2020/09/29 downloaded" and a little circle with an arrow in it pointing downwards. But nothing is downloaded. Putting a check in the above mentioned box makes the download work. =========================================================================== HOPE A DEVELOPER READS THIS. Either ASUS is doing something strange or firefox as of rel 79 has changed its behavior. To repeat myself: I can download on other sites (like drivers for NVIDIA GPUs) just fine. So far, it just seems to be a problem on the ASUS homepage. ASUS is telling me that this is a Firefox problem. Have a nice day. ============================================================================