Hi E A, Mozilla is gathering feedback about your likes/dislikes/requests for the updated sidebar on Mozilla Connect in the following thread:

Sidebar and vertical tabs: release channel experimentation

this answer doesn't work. Now I have a blank sidebar, what fool thought this up? Did they work for Jaguar before this job? How do I get rid of the side bar? FIREFOX do something, give me a rep to call or I can just ditch you for a different browser.

this answer doesn't work. Now I have a blank sidebar,

Please see https://support.mozilla.org/en-US/questions/1476022#answer-1690865

Don't listen to the haters, the new sidebar is great! I actually got here because I was trying to understand why one of my machine had the sidebar and the other didn't, since I wanted it on both

The problem is, with the revamp, the revamp wastes a ton of space by forceably adding a veritical bar on the left. Use Tree Style Tabs, or some such, and you waste a bunch of space now. Screen real estate is the most precious thing we have, don't spend it for me.

The problem is, with the revamp, the revamp wastes a ton of space by forceably adding a veritical bar on the left. Use Tree Style Tabs, or some such, and you waste a bunch of space now. Screen real estate is the most precious thing we have, don't spend it for me.

Hi Chris, there's a thread for feedback on Mozilla Connect: https://connect.mozilla.org/t5/discussions/sidebar-and-vertical-tabs-release-channel-experimentation/td-p/78966

Wow! More malware from Mozilla! I'm getting really fed up with these changes. Very irritating that it popped up without asking me. I had to stop what I wanted to do and find out how to remove the sidebar. Now I'm stuck with an icon for the sidebar at the top of the page.

To completely get rid of this annoying sidebar, go to about:config, then set sidebar.revamp to false

Thank you mohamedmonem420!