hello, it isn't possible to create a custom homepage at the moment. however as a workaround you could create a bookmark for that page & add it to the homescreen of your phone - this will have the same effect when you launch firefox from that bookmark.

Add, delete and view bookmarked webpages in Firefox for Android

Hi:

Unfortunately you cannot remove the top sites homepage but you can pin a site, remove a site by unpinning it and edit a pinned site's url.

Please read this article for instructions.

Hope this helps!

Hi jqajax

the homechanger add-on might work for you

it works for me on Firefox for Android 29.0.1 with my Galaxy S5

If it doesn't please file a support request with the homechanger author

https://addons.mozilla.org/en-US/android/addon/home-changer/

Cheers!

...Roland