Firefox: Be able to add or pin a website or pwa to the sidebar

[almondelf2]

I know this sounds redundant since there already is a bookmarks bar, but I personally like to keep my most frequently used sites separate from the rest of my bookmarks. You can refer to the way Brave designed their sidebar for reference. 
Firefox  

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.