Excellent - but needs update Rated 5 out of 5 stars

I loved this add-on. It was easy to use and extremely helpful.

Please, please update this to work with current firefox version 24.

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

The only Firefox ruler addon which worked Rated 5 out of 5 stars

This was the only firefox ruler addon which worked for me (I use Waterfox, a 64 bit Firefox distrubition).

Rated 1 out of 5 stars

Slow and really bad. Needs to restart, and then just don't work well.

Slow, buggy Rated 2 out of 5 stars

Firefox 10 review:
Dragging the grid over sections in the page is extremely laggy. There is also a sense that this thing wants to snap into place so you never get the true size. The idea is good, but there are problems making this unusable.

This review is for a previous version of the add-on (0.2.1.1-signed). 

Disappointing Rated 1 out of 5 stars

I've seen this actually work on about 3 web pages. Google's home page a few months ago, and MAYBE 2 others. It would be really nice, and I would use it all the time if it actually worked. Otherwise, removed from FF

This review is for a previous version of the add-on (0.2.1.1-signed). 

Great....when it works, which is only some of the time. Rated 1 out of 5 stars

Works on some pages and not others...
Looks great when it works, however pointless when it doesnt.

Hopefully the info below will help the developers:
I am on Firefox 6.0.2 on windows.
For users of NoScript: it may be that this extension doesnt work if scripts are turned off (as I can measure more pages where I allow scripts).

This review is for a previous version of the add-on (0.1.1-signed). 

Works great on FF6 (with MACR) Rated 4 out of 5 stars

Works great under Firefox 6 (search for and install Mozilla's Add-on Compatibility Reporter to allow it to work) and looks very nice. I do have 2 complaints though: a) there is no way to see the dimensions when working with small areas such as 4px x 4px. Maybe the dimension could also be displayed on the "addon bar" or broken out into a separate movable box? b) as far as i can tell, you can't redraw/reuse the selector without clicking the icon a second time. Other than that, great job but I'm going to have to stick with MeasureIt until those 2 things are addressed.

This review is for a previous version of the add-on (0.1.1-signed). 

Thanks for your review. I will soon make a full review of the addon to be compatible with the last firefox versions. For your proposal to display the dimensions in the addon bar, I will think about it, maybe it's an alternative for small areas.

Rated 1 out of 5 stars

Does not work. I used to use a different Add-on for this purpose and it worked great. When I upgraded to Firefox 6 the old Add-on no longer worked. This was given as a replacement recommendation, and unfortunately is no replacement at all. I plan to remove it from my Add-ons.

This review is for a previous version of the add-on (0.1.1-signed). 

Thanks for trying this addon, can you explain in detail what is going wrong with it please ?

Rated 1 out of 5 stars

Just plain does not work in Firefox 6.

This review is for a previous version of the add-on (0.1.1-signed). 

Rated 1 out of 5 stars

WARNING WARNING WARNING
Can I just warn everyone that this addon COULD contain a virus in one form or another. While unlikely, it produced similar negative effects on several computers I tested it with.

It stopped me dragging/dropping files. As soon as I uninstalled it, the problem disappeared. I tried isolating the problem by re-installing it, (the problem occured again) and I ended the plugin-container process. Computer returned to normal. I did both these tests (uninstalling, ending plugin-container) on three different computers - two were my own - all while the software was installed, and it solved it.

Avoid this software if possible. I've disabled and deleted it.

This review is for a previous version of the add-on (0.1.1-signed).  This user has a previous review of this add-on.

Hi, can you tell me which version of firefox / OS do you use please ? It seems that the out-of-process internal plugin of firefox is buggy. If you have anothers restartless addons and you have the same issues, you should report ot to Mozilla.

Rated 2 out of 5 stars

Works sometime.
If you're on a Mac, you can use screen shot to measure also. Command-Shift-4 and drag to select the area you want, height & width dimensions will appear as you drag the cursor. You'll have to trash the resulting screenshot. Or Control-Command-Shift-4 to copy the selected range to the Clipboard.

This review is for a previous version of the add-on (0.1.1-signed). 

Rated 2 out of 5 stars

Works as intended, but not on every drag. Sometimes it doesn't create a measuring rectangle. However, the [ESC] key will clear the measure mode if you're stuck so that you can try again. Usually works on the second try. Overall it does a decent job, but no options to configure it. So as ander mentioned in their review, you can't efficiently measure smaller items since the readout is inside the box.

This review is for a previous version of the add-on (0.1.1-signed).  This user has a previous review of this add-on.

Needs a bit of work Rated 2 out of 5 stars

A good effort---but for some reason, this works with some pages and not others. (The author mentions that the icon turns yellow when the add-on is "available".) But something like this should be able to measure any page as a single graphic object. Maybe the author is still learning how to implement that.

Also, because the measurement appears inside the measuring box, you can't use it to measure anything under 40 pixels; the box becomes too small to see the digits. A better way would be to show the measurement as a tooltip next to the measuring box.

If the author fixed these two problems, this would be a useful add-on---esp. since MeasureIt doesn't work with FF 5.

This review is for a previous version of the add-on (0.1.1-signed).