Unwanted "Thank You For Loving Firefox" window on startup
Every time I open Firefox, as well as my StartPage Home page, an additional "Thank You For Loving Firefox" tab opens, and it does so in preference to my home page. How do I remove this "bonus feature"? In addition, an additional "Firefox View" button appears to the left of my home page tab, which I would also prefer not to be obliged to remove each time. Can I also disable this feature? OS is Linux Mint, desktop computer, with 2 TB SSD, Quad core processor, 16 Gb RAM.
Opaite Mbohovái (1)
You can check that those pages aren't set as multiple homepages.
You can check the homepage setting in "Settings -> Home".
Firefox supports multiple homepages separated by '|' (pipe) symbols.