2 big problems, 2 little ones. No competition, literally. Rated 1 out of 5 stars

Update: Changed to one star because no response form author.

Window won't remember being resized, can't choose an image anymore for the Google post, sites with a gplus button already override the button, hard to tab through to the post button.

see Google + shares of the page you're on in your tool bar. Rated 4 out of 5 stars

It also lets you share the page on Google + but you can't 1+ it.

Does not work for two profiles with Multifox! Rated 3 out of 5 stars

When you click on the button, it is always the same profile, even if you are in the other profile.

Works well, but breaks Acid 3 test with Firefox 31 Rated 3 out of 5 stars

When I have the Google+1 button extension installed, the Acid3 test fails with an error message which seems to indicate that the Google+1 button has modified the DOM in a way that causes the test to fail.

Most effective way to share anything you find online Rated 5 out of 5 stars

This button and its optional pop-up allow you to share stuff without losing your focus.

BTW: It can be blocked by AdBlock & the like. To avoid, remove the filter "||google.com^*/fastbutton?$third-party" which I found in Fanboy's Social blocking list.

Isn't working again Rated 4 out of 5 stars

Seems to have stopped working on all sites in the past 24 hours. Please update.

Rated 1 out of 5 stars

Does not work on most websites. Google must have blocked it.

This user has a previous review of this add-on.

Unerlässlich Rated 5 out of 5 stars

Dieser Button gehört von Haus aus in Firefox integriert. Er spart eine Menge Zeit. Man legt sich den +1 Button auf die Symbolleiste. Möchte man eine Webseite teilen, klickt man auf den Button und kann sofort einen Beitrag in Google+ erstellen. Sehr praktisch.

Rated 4 out of 5 stars

Trying to get more active on G+, I think this will help a lot. Only thing that I can see so far, as a newbie is that I would like a simple way to choose, either to add my comment on G+, or just a simple "+1" without going into settings. Maybe with 2 buttons?

This review is for a previous version of the add-on (1.1.0.9.1-signed). 

Needs Update, still great! Rated 5 out of 5 stars

Google recently updated the site share function. Now I have to manually resize the popup window vertically to locate the share button.

This review is for a previous version of the add-on (1.1.0.9.1-signed). 

Nice and simple! Rated 4 out of 5 stars

Works as advertised, without lots of comlications!

This review is for a previous version of the add-on (1.1.0.9.1-signed). 

OOPSSS Rated 5 out of 5 stars

I used to LOVE this add-on! The best plus one button out there! But recently it just stopped working. It's just a button that you can't press it. Please fix it if you can :)

Edit: Okay, my mistake. The button was not working because ghostery was blocking it! I feel so dumb! So.... great add-on!! Thanks for your work! :)

This review is for a previous version of the add-on (1.1.0.9.1-signed). 

greyed out Rated 1 out of 5 stars

The button is greyed out and does nothing.

This review is for a previous version of the add-on (1.1.0.9.1-signed). 

Works good Rated 5 out of 5 stars

I tried it on sites with no +1 button and it works fine; it may be just a link, but it still works
basically you could open a google plus page and copy and paste the link yourself

This review is for a previous version of the add-on (1.1.0.9.1-signed). 

gr8! Rated 5 out of 5 stars

Now your addon is complete :]

This review is for a previous version of the add-on (1.1.0.9.1-signed).  This user has a previous review of this add-on.

Not sure how useful Rated 3 out of 5 stars

So far I've only used it for a few minutes, but it appears to only work on sites that already have +1 buttons on them. If that's correct, it makes the process more ergonomic for those sites, but no more convenient for sites without +1 buttons.

This review is for a previous version of the add-on (1.0.7.8.1-signed). 

Rated 5 out of 5 stars

Не планируется ли сделать возможность не только +1, но и оставить комментарий, как это бывает у многих подобных веб-кнопок?

This review is for a previous version of the add-on (1.0.7.8.1-signed). 

Rated 5 out of 5 stars

Works well

This review is for a previous version of the add-on (1.0.7.8.1-signed). 

Rated 5 out of 5 stars

Nice Google+ button

This review is for a previous version of the add-on (1.0.7.8.1-signed). 

Rated 4 out of 5 stars

It seems to work just fine, quick and simple, as it is supposed to.

This review is for a previous version of the add-on (1.0.7.8.1-signed).