Should be default Rated 5 out of 5 stars

In general, I find that the toolbars at the top take too much space. I was excited about LessChrome but it did not work for me since the movement of the toolbar obstructed the reading space. OneLiner is much, much better. I do like the feature that the awesome bar changes its size when you access it, because sometimes I want to see the whole address to make sure that I am not on an illicit webpage. However, I can understand that some users find this distracting and would like have an option to switch this feature off.
The only improvement I could think of would probably quite difficult: At lest on the mac, the first line of the top toolbar section contains the 3 buttons (close, hide, increase window) and the title of the web page. The latter takes most of the space and is redundant as the title is also shown on the tabs (full name if you hover over them). So I would propose to drop the redundant title and to merge this line with the OneLiner toolbar. Of course, this should be an option as it would not be compatible with the UI-recommendations of the OS vendor.
In reply to other reviewers:
goso321: Full screen works perfectly with my OS (OSX 10.7). (Shortcut: shift-command-F)
Skittle LA: Customization works for me, though it is not very intuitive: I see the standard toolbars but not the OneLine toolbar. In order to add an icon to the OneLine toolbar you simply add it to the tabs toolbar.
Thanks for this great piece of work!

Great Idea With Problems Rated 1 out of 5 stars

Not compatible with LastPass. When you disable/remove it, it causes you URL bar to lengthen practically across the page.

Buyer beware!

Rated 4 out of 5 stars

This is awesome. You should make the search button removable or at least, able to change where it leads to. Other than that, it's great!

Rated 4 out of 5 stars

Putting awesome bar and tabs in one line is a good idea, especially for big screen.
one Recommend: the width of awesome bar doesn't need change when focused. I don't think people will input long address. As for me, the input is always less than 20 characters;

No search bar = too limiting Rated 3 out of 5 stars

The lack of search engine choice limits this to a try and discard effort.

In response to previous review: Full screen (F11) works fine for me in FF7.

No Full Screen! Rated 4 out of 5 stars

That add-on is really nice; however, I cannot use the F-11 (full screen) button again. Please fix this.

home icon disappeared Rated 4 out of 5 stars

nice job but can u put home icon instead of the magnifying glass icon? overall you have done a fantastic addon and congratulation for that achievement. cheers! =D

Rated 4 out of 5 stars

I like the design. It looks like ie9, but is there a way that you could choose different search engines. Also, could there be an option to change the home icon to the original or something? Thanks!

Rated 5 out of 5 stars

- the tabs and new tab button are bigger than the original ones (win xp), please fix/leave the original size
- the search button feature it's great but it's annoying that it sends you to in-tab search, make it to use directly the default search engine. (or add an option for it)
- please add the back and forward buttons from the latest UX build by default or at last optional, they are amazing.
- "double the width of the location bar when focused" this is very annoying please add option to disable it or allow us to select the size.

Rated 4 out of 5 stars

I think I like it better than LessChrome HD because I don't have to mouse over the navigation bar to use it, I can just glance up.
I like the minimalistic approach, and the UI even feels faster for some reason...idk why.

However, I would like to have a little more customization options--I would remove the magnifying glass and place my WOT icon on the right side, like I've always had it. When clicking 'customize', the navigation/tab bar goes crazy because OneLiner is enabled.

Other than that, it looks and works fine for me. Keep the good ideas coming.

Rated 4 out of 5 stars

"double the width of the location bar when focused"
This is annoying!!!
The tabs keep jumping around.
Please please allow it to be disabled!

Rated 3 out of 5 stars

How to remove Search icon wich I don't need?
And how to get back RSS icon in Awesome bar?
The rest is Ok.

This review is for a previous version of the add-on (1). 

Rated 4 out of 5 stars

I think this is an awesome idea from IE. Does right clicking the search icon allow you to select the search engine?

Edit:I see it just fills it in to the default home search engine page. I think this is a bad idea. I think hitting enter on a word(s) typed in the url bar should run search on the currently selected search engine. The search engine icon should be shown at least as a background of the magnifying icon, also right clicking the magnifying icon should allow to change the search engine. Also should be able to change the search engine by holding ctrl + down/up arrow, just like you can in the regular search bar.

Also now that the search bar is unified with this, live search results/suggestions of the currently selected engine (if the engine has live results/suggestions) should be shown in in the suggestions area of the url bar.

This review is for a previous version of the add-on (1). 

Rated 2 out of 5 stars

I love the concept, but doesn't work well with my use case. I use 'vertical tab' addon and place my bookmarks next to my menu.
See the screenshot: http://img854.imageshack.us/img854/3923/firefoxaddonlesschromeh.png

This review is for a previous version of the add-on (1). 

bug? many search icons Rated 4 out of 5 stars

every time i restart the addon, one more search icon appears in my tab-bar, i costomize the bars before, it's not supposed to have so many icons...for now, more than 10 icons,, in firefox 6 ubuntu 11.10 alpha

This review is for a previous version of the add-on (1). 

Good concept, bad execution Rated 3 out of 5 stars

While I sorta like the IE9-styled appearance, I personally think that the implementation could be a little less buggy (when I restart, I have the minimal bar with a search box stretched under it, among other things)

This review is for a previous version of the add-on (1). 

Rated 1 out of 5 stars

bad ass monkey :D
,sorry folks, i dont like this add on

This review is for a previous version of the add-on (1). 

No way to delete the add-on Rated 3 out of 5 stars

I installed it and didn't care for the layout. When went to disable/uninstall and I could not find anything to allow me to do this. It didn't show in the Extensions, Plugins, Addons nor Tools. How do you disable/uninstall? I have a lot of "buttons" on my navigation bar and they disappear, unless I check the navigation box to bring it back. Then I still have the OneLiner URL box along with the one on the navigation bar. I gave it three stars because if one has a "vanilla" install, then I can see it being useful - but if you have add-ons that place buttons on the navigation bar, then they disappear. Bringing them back, you still end up with the modified tab bar (2 URL boxes).

This review is for a previous version of the add-on (1). 

Good start, needs improvement Rated 4 out of 5 stars

Overall UI design is quite compact, but functionality needs improvement.
-allow highlighted searches to be directed to the search plugin currently in use rather than default about:home
-provide option to remove magnifying glass icon next to awesome bar (via menu customize)
-widen the awesome bar drop down menu so that user can see text of the url suggestions while typing

This review is for a previous version of the add-on (1). 

Rated 3 out of 5 stars

this addon makes FF look like IE9
But I guess it's only useful if you like IE9's design and use only the addon bar as it hides all your toolbar icons.
It's also not compatible with Lesschrome addon.

This review is for a previous version of the add-on (1).