and it will be better if we get a new tab automatically when clicked on a bookmark ( currently it replaces the active tab)

Hi,

The people who answer questions here, for the most part, are other Firefox users volunteering their time (like me), not Mozilla employees or Firefox developers.

If you want to leave feedback for Firefox developers, you can go to the Firefox Help menu and select Submit Feedback... or use this link. Your feedback gets collected at http://input.mozilla.org/, where a team of people read it and gather data about the most common issues.

pgharidas said

1. window controls (minimise,max,close buttons) can be arranged in the "tab toolbar" ( now it appears above tab toolbar which is a waste of space )

Type about:customizing<enter> in the address bar. In the new window, look for the icon. When you find it, hold down the left button on it, and move it to where you want it to be. You can move any of the icons you want from here, but some icons are locked in place.

There is also a Restore Defaults button at the bottom middle.

2. Bookmark toolbar must be visible always (like chrome or maxthon) which increase the speed of user ( current setup is only functional to a good user )

The toolbars can be set up to be always displayed, or hidden

3. Add a margin at left side and can be used to show downloads, settings and such important icons ( like in maxthon - very useful and it inceases the beauti like a margin in the left side of a paper )

There are add-ons that can do much of this. Go to the Mozilla Add-ons Web Page {web link} (There’s a lot of good stuff here) and search for what you want.