Why are Zen browser features not available in Firefox browser?

[universish]

I don't want to use zen or floorp. I want to use firefox, but unfortunately I don't use firefox because it doesn't have these features that increase usability and efficiency. So these features should be built into firefox. We should be able to enable or disable these features in the settings:

• sidebar or tabbar on the left or right panel (the ability to move the tab bar, also called vertical tab or
• vertical panel,
• to the left or right side, this feature is also available in floorp browser. ),
• compact mode (the ability to hide all bars),
• workspaces,
• the ability to assign containers to workspaces (with firefox multi-acoount conteiners extensions),
• a bookmarks bar specific to workspaces (the ability to separate bookmarks belonging to workspaces),
• the ability to synchronize bookmarks by workspaces,
• the ability to pin tabs by workspaces,
• and the ability to synchronize pinned tabs,
• the ability to attach to core items (pin tabs to all workspaces),
• and synchronize core items,
• the sidebar web panel feature (the ability to run a web app in the sidebar, also available in floorp),
• the ability to split the browser screen into 2, 3 or 4 (split view),
• the vertical menu bar feature (text can be written vertically with letters underneath each other),

• vertical menu bar feature (text can be written vertically with letters one below the other
  (e.g:
  F
  i
  l
  e
  etc.)

  or text, letters can be written right or left slanted, the user should be able to choose this in the settings),

• the vertical title bar feature (text should be written in the same way);
• And features in zen modes that make these features more advanced and more useful and more efficient should be embedded in the firefox browser;
• Also the vertical “sidebar web panel” should be a different bar than the left/right vertical tabbar and sidebar;
• “sidebar web panel” applications (URLs) should be synchronized;
• We should also be able to export and backup settings and configurations of installed plugin;
• It should also be able to synchronize open tabs in workspaces and workspaces specific history separately;
• There should also be the ability to assign a website to a workspaces;
• When we click on the website from bookmarks, the website should be able to run in the workspaces it is assigned to. Or when we search in search engine and click on the url, the website should be able to run in the workspaces it is assigned to;
• Also the search engines we save in the settings should be synchronized.

There should also be buttons that can be added to the toolbar: “Close this open tab” button, “Enable/disable compact mode” button, “Vertical Sidebar Expand/Collapse Web Panel” button (different from the show sidebar button in firefox), “reopen closed tab” button.

Features that increase efficiency and usability should be added, and vertical bars should be enabled for small monitors. When the monitor is small (e.g. laptop monitors) horizontal bars take up too much of the screen. Vertical bars take up less space. Also with modes like compact mode and the ability to hide the bars with drawers, we can get the most out of the monitor. By collapsing the vertical bars and assigning icons and colors, we can use them more effectively without seeing the text. Useful zen-mode-like features such as closing the tab and muting the tab sound should be embedded in the vertical bar collapsing feature.


We need to put pressure on firefox to add these features.