Firefox fún Android Àpèjọ Àtìlẹ́hìn

I was using foxfilter extension on spin browser in android and spin uses Firefox at it's core . The extension used to work well until some point in the past and suddenly it stopped working . I reached out to foxfilter support and they told Firefox stopped supporting some extensions on Android and thus the issue . Is there anyway you could start supporting foxfilter on firefox Android or can i use an olderversion of firefox on Android to get foxfilter working . If so could you guide me how to get that version installed ?

I need to export passwords from Android Firefox. I know this functionality exists in the desktop version, but I do not have access to a desktop. I cannot find the same function in the Android version.

After attempting to save about 100+ Tabs on a window frustratingly by hand, I would like to request a way to group Tabs, be able to save them to sessions and have "Select all" when holding a tab for options.

I hope someone or some of the devs can see this, because the lack of support is quite vexing, enough to switch to another browser for good, if it wasn't for the ad-free browsing