Fóram Tacaíochta Firefox

I have multiple internal websites, which all follow the pattern of [site.one.two] which resolves fine using the internal DNS server i have configured by going to https://site.one.two and through other programs via site.one.two, and all the [one.two] suffixes are blacklisted from being resolved with DoH in firefox, but it still forces a web-search, even with searching from address bar being turned off, instead of resolving through my local DNS server (local server resolves local domain suffixes, anything else gets resolved through cloudflare DNS). I haven't found a fix in any other forums, and there are enough unique internal addresses that manually adding each and [every site.one.two] as an exception would be something i would like to avoid. Is there any way to tell firefox to resolve through DNS first for addresses or domain suffixes?

Every time I log on a site where I have previously searched something in their search bar, whatever I searched either gets auto-filled (even if I want to search something else) or appears in the bottom of the search bar. They disappear if I clear all my search history but then I have to re-log into every site on my browser.

How can I delete those suggestions/make them not appear anymore without loging out? I have tried checking the autofill settings but everything is password related.

Some websites like youtube, twitter, reddit and maybe many more don't properly load. On youtube videos freeze after a couple of minutes, I don't have any of these other issues on other browsers like Chrome

Just to preface I have already tried looking for a similar issue in support and most of the answers are like "just make sure to not be in private browsing" but I am sure that I am not and my extensions are all allowed in private browsing anyways. I also know this is not a theme issue as after I removed ublock origin and re-added it to firefox the extension icon showed up in the menu just like usual, but I do not want to do this for every single extension as I have a large amount and I am worried about personal settings that I have saved being undone. In the past I have used this same firefox setup without any of these issues whatsoever and without changing any settings since then.

The main issue is that when I click the extensions menu toolbar icon (the puzzle piece) it only takes me to about:addons. On this page I can confirm all my extensions are there, and I know that they are working, due to things like ads still being blocked from ublock origin or tracking links being blocked from clearURLs. However there is no icon for them after clicking/right clicking the the extensions puzzle piece, or when using the "customize toolbar" feature, or in the overflow menu, or in any other possible place. I have also tried telling the toolbar to reset to default and this does not help. Since the puzzle piece icon never shows me a menu, there is no way to right-click an extension and get the menu option to "pin to toolbar" as this option can't be found in the about:addons page as far as I have found.

Is there any way to fix this beyond just re-adding every single one of my extensions?

My windows install in my dualboot pc is unable to open at the moment, I can access the windows files from my linux. But i need the firefox data on that pc that I kept. I don't remember which email I used on that account so I'm kind of stuck on getting my data from online. Is there a way to recieve all the data from another drive without opening firefox?