Rated 5 out of 5 stars

Everything in the above "About this Add-on" is why I love this addon.
I delayed upgrading because I did not want to lose this addon. There is no FF w/out AIOS. It is my go-to place to review info or store tools. All my tools are on the vertical toolbar, I open bookmarks, addons, page info, etc in the sidebar --- quick, easy, reliable, unobtrusive.

This review is for a previous version of the add-on (0.7.22.1-signed). 

Rated 5 out of 5 stars

One of the first addons I install on every Firefox. Creates a clean FF interface and makes accessing bookmarks, web info, tools, ... super convenient. It truly is an addon that considers the user and empowers them. This easily has to be one of the top 5 addons of all times. And the developer is very nice.

This review is for a previous version of the add-on (0.7.20.1-signed). 

Save space. Be more efficient. Rated 5 out of 5 stars

I like a minimalist browser UI, so along with "Tiny Menu" and selected "Custom Toolbar Buttons", the "All-in-One Sidebar" (AIOS) becomes my main focal point for tools and info within FireFox. Vertical space is a premium. I need the status bar at the bottom (FireFox version 4+ requires "Status-r-Evar"), tabs and a toolbar at the top, and everything else in "AOIS".

There are multiple ways that AIOS can help. First, there is the toolbar. It contains buttons to functions and other add-ons that I use often and I want to access quickly. Second, there is the sidebar switch, which with one click "AIOS" sidebar expands and collapses. And last, within the expanded sidebar, I can view info about FireFox, the current web page, or the output from various other add-on's. I would be remiss if I left this comment without saying, "AIOS" puts the user in control of their environment, it works flawlessly, and the author is very responsive.

This review is for a previous version of the add-on (0.7.16.1-signed).