All-in-One Sidebar is a simple to use addon for you Firefox browser. All-in-One Sidebar (AiOS) is a sidebar control, inspired by Opera's. Click on the left edge of your browser window to open the sidebar and get easy access to all your panels. It lets you quickly switch between sidebar panels, view dialog windows such as downloads, add-ons, and more in the sidebar, or view source code or websites in the sidebar. It includes a slide-out button and a toolbar, all of which can be extensively customized. All-In-One Sidebar provides also enhancements for many built-in and extension features and some extra features.

Features of All-in-One Sidebar
General:
1. Open in the sidebar: Bookmarks, History, Downloads, Add-ons (Get Add-ons, Extensions, Themes and Plugins), Page Info, Page Source and Error Console
2. All-in-One Sidebar Toolbar: fully configurable, different view modes, placeable at different positions around the sidebar
3. Automatically show/hide the sidebar without a click - with additional toolbar button (off by default)
4. Sidebar orientation left or right
5. Sidebar Switch to toggle the toolbar and the sidebar with only one click (with additional features for Ctrl+Left-click [middle-click] and Shift+Left-click)
6. Sidebar Grippy to collapse the sidebar
7. Sidebar collapsing for boosting up your experience
8. MultiPanel Sidebar - open a website, the source code or different browser information (e.g. about:config) in the sidebar
9. PanelTab Button - open any sidebar content in a new tab or in a window and open any tab content in the sidebar
10. Fully configurable keyboard shortcuts
11. Customize the behavior of the sidebar at startup, in full screen mode and more. E.g. you can choose a sidebar panel which should open automatically at browser startup
12. Sidebar Panel Button (AiOS Button) - easy access all installed sidebar panels. All sidebar extensions are supported, which creates a menu item in Firefox's sidebar menu
13. Toolbar buttons for all new sidebar panels with options to open the content in the sidebar, in a new tab or in a window
14. (Downloads, Add-ons, MultiPanel, Page Info, Page Source, Error Console)
15. Toolbar button for showing/hiding the All-in-One Sidebar Toolbar.
16. Set the minimum, default and maximum width of the sidebar and restore these settings easily
17. Export/import settings from the options dialog - allows easier configuration on a second computer or after creating a new profile

Bookmarks & History:
1. Layout optimized for the sidebar
2. "Close All Folders" button
3. "Tools" button with options
* Automatically close other folders (same behavior as in MSIE, but it only works when you click on a folder name, not on the "+ signs")
* Remember and focus last selected folder
* Automatically scroll to selected folder

Downloads:
1. Layout optimized for the sidebar
2. Slim list
3. Counter in the sidebar header shows the number of finished/downloading/failed downloads
4. Highlight the different states (finished/paused/unfinished, failed/canceled)

Add-ons:
1. Layout optimized for the sidebar
2. Slim list
3. Counter in the sidebar header shows the number of enabled/disabled add-ons
4. Highlight the different states (enabled/disabled, to be installed/to be uninstalled, incompatible)
5. Homepage of add-ons always opens in a new tab instead of a new window
6. Dragging webcontent on add-ons button opens the panel

MultiPanel:
1. Open a website in the sidebar, optional with Small Screen Rendering
2. Open the source code in the sidebar, optional with automatically reload
3. Open different browser information in the sidebar
4. (about:config, about:plugins, about:cache, about:cache?device=disk, about:cache?device=memory, about:cache?device=offline, about:crashes, about:buildconfig, about:, about:robots, about:credits, about:license, about:mozilla)

Page Info
* Layout optimized for the sidebar

Page Source
* Optional with automatically reload

Error Console
1. Layout optimized for the sidebar
2. Slim list
3. Highlight the different states (message, warning, error)

Requirements:
* Firefox

The license of this software is Freeware, you can free download and free use this browser plug-ins software.