To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
INCREDIBLY handy if you need to take consistently sized screenshots across many days Rated 5 out of 5 stars
I regularly need to incorporate screenshots into documentation of Web applications. Firesizer is THE tool to set my browser to a known size so that screenshots taken across several days are all consistently sized. Excellent add-on!This user has a previous review of this add-on.
Extremely Useful Tool for Developers Rated 5 out of 5 stars
For anybody developing web sites, this is really helpful to have.
Nifty little tool - and a feature suggestion Rated 4 out of 5 stars
Thanks for creating this nifty add-ons. Knowing where and how the custom dimensions are stored would make it even a better add-on. Keep up the good work.
Fx35 + Puzzle Toolbars = Firesizer working fine Rated 5 out of 5 stars
Using Puzzle Toolbars, which restores a "shadow" statusbar (while Mozilla still supports it), I've got the Firesizer statusbar text display/button up on my nav-bar (which has plenty of space on it--widescreen). Still, you know Mozilla is going to kill the statusbar eventually...This user has a previous review of this add-on.
Have you tried Ctrl+Shift+M? Rated 5 out of 5 stars
This add-on still works great on Firefox ESR ( https://www.mozilla.org/en-US/firefox/organizations/all/ ) which I use. I'm sad to read that there are problems with the latest stable FF though. For the ones that use this, may I advice to try the built-in FF Responsive Design View - Ctrl+Shift+M ( https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly#w_tools )
I've just find out about it and it mostly covers this add-on's features.
Hope that helps some of you fellow devs.
Ditch the add-on bar!! Rated 3 out of 5 stars
I agree with other posters that forcing us to put back in a feature (add-on bar) which has been abandoned (with lots of notice to boot) in order to support this single add on is completely backwards thinking. This used to be a daily driver but now it's simply inaccessible. PLEASE for the love of dog fix this! Allow us to place it in the new customizable menu!
Used to be favorite, but now... Rated 3 out of 5 stars
Please make this one work in FF 29+ without the need for installing the extra statusbar add-on!
Firesizer used to be my most used add-on: it's very helpful when you change browser window size often to different screen standards. It's also easy to customize.
But I'm consciously limiting the number of installed add-ons, for reasons of browser speed and stability, so really don't need an extra add-on to keep another one working. Also 'keeping alive' the status bar now that it's been structurally abandoned by FF isn't the way to go. So I've stopped using Firesizer for now.
Having a small popup panel (e.g. like Ghostery has), or having the resize options show up in the right click option menu would be great.
Not showing the correct resolution? Rated 4 out of 5 stars
Looks like a great add-on for working with responsive design... My laptop has a 1920px width and when the window is maximised it's showing 1936 x 1186? And it makes no difference if there's a scroll bar showing or not?
I have explained what you're seeing in this reply to another comment:
Rated 5 out of 5 stars
Doesn't work anymore in Firefox 29.0.
Before it was a 5 star add-on.
The Addon Bar
I recommend installing "The Addon Bar" extension to restore the addon bar to Firefox 29. Every extension that uses it has been affected by the changes introduced in Firefox 29.
Rated 3 out of 5 stars
@blafuchs: I tried your hack but it was off by a couple pixels when testing it with my media queries. @McGWD hack is spot on. If the author fixes the original I'll give it 5 stars. With the hack though it's perfect!
Great App !!! Rated 1 out of 5 stars
[EDIT: After using this tool for a good chunk of time, I realized all the readings are off. After comparing measurements to other window measuring tools I found the measurements are WAY OFF. Tested both viewport and window size and found measurements displayed are not close to either!!! I would post picture evidence but no upload feature.]
I needed a simple app to help with responsive window resolution testing for my website. And this app fit my needs almost perfectly. It could use a few more features like starting with a few more standard sizes but otherwise great job!
If you make it open source, I promise to make some improvements from similar apps (but more advanced) that I have used and tested and found to be useful. Sadly, they only work with Chrome. =[
Oh, and a super thanks for letting me know about Barlesque, I love it!!!!
This extension is meant to resize the entire browser window to the specified size, not the HTML viewport. I really feel that most, if not all web site designs seem to target some sort of ideal viewport size (like 1024x768), and always seem to forget about window borders, scroll bars, etc..., and it really drives me nuts. You can't ignore the fact that browsers have all of these interface elements. If you're developing for mobile devices, this is a different story, and in that case, using the viewport size would make more sense.
Firesizer's measurements include these window borders, top/bottom status bars, menus, navigation buttons, etc... When these are included, the measurements are accurate. Further, when the window is maximized, Windows actually just makes the window so big that you can't see the borders, but they are still there. This will cause the measurements to appear to be inaccurate in a maximized window. There is no way to account for this in the extension because the border widths are OS specific, and users can change them if they want.
correct ViewportSize Rated 4 out of 5 stars
@McGWD: nice work, but the viewport is actually content.document.documentElement.clientWidth
document.documentElement.clientWidth in that case returns the size of the whole program window. Seems the addon is not working in the document window scope by default.
Rated 5 out of 5 stars
I made it so it shows the Viewport-Size!
Rated 5 out of 5 stars
Very simple, saves some time resizing the browser window while working and need multiple browsers open and next to each other. Would be nice if I could "nickname" the size, since I have multiple browser sizes for different projects.
Saving position would be nice Rated 4 out of 5 stars
it does work good but i wish that i can save/restore the position of my window, thanks anyway.
Needs viewport resizing, too. Rated 4 out of 5 stars
It would be useful to have a checkbox next to each setting to indicate whether the dimensions are for the whole browser window or just the content area.
That way, I wouldn't have to go into the Web Console, query outerHeight - innerHeight + desiredInnerHeight (and the same for width, if on Windows).
I was developing a kiosk app that will show full-screen on a 1920x1080 monitor, so I wanted a content window of exactly that size, so that I could see how it will look.
It would also be useful to be able to assign key-chords to the settings. That would speed up testing: make a change, reload the page, and cycle through your target sizes by hitting the appropriate keys
Rated 5 out of 5 stars
Very useful to maintain firefox window size
good tool for devs and testers Rated 4 out of 5 stars
This tool provides great way to see what a site looks like when the user has a given size of screen and the browser configured a given way (e.g. number of toolbars and such nonsense)
Things I'd like to see added.
1) better list of standard defaults based on what is in common use including sizes of common tablets in portrait and landscape
2) option of a 'label' on a resolution, helpful to remind you why you care.. Display in the list when choosing, but not once chosen.
e.g. a portion of the default list might look like this
768 x 1024 ipad -portrait
768 x 1366 surface -portrait
800 x 1232 xoom -portrait
1024 x 768 ipad -landscape
1280 x 752 xoom -landscape
1366 x 768 surface -landscape
Good simple addon Rated 4 out of 5 stars
This is a good functional addon. I'd like to see an option to save the size of common web pages to avoid having to set them again each time the browser is reloaded. Otherwise, thank you for this and I hope future versions will have more functionality.
Not for responsive design Rated 5 out of 5 stars
EDIT after discussion with the developer :
This tool is set up to measure the size of the entire screen (and does it perfectly), but not for the size of the viewport, as needed for responsive designe development. Please take this in account and use Mozilla developer tool for responsive development preferably.
Five stars for developer help and quick answers !
OLD review : Doesn't work perfectly, adds some extra width due to the scroll bar. Anyway Firefox now has a responsive design option in its developer tools...EDIT (reply to dev answer) : in W7 - Firefox V18.0.2, when you compare the developer view (CTRL-SHIFT-M) width value and the firesizer width value: you should get very different pixel width values... I can PM you more info or help to debug if you wish.
I would be glad to address whatever you think "doesn't work perfectly". I have not had any other reports of issues with this extension.