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It WAS one of my favorite Add-on's, but v1.7.1 doesn't work anymore with Firefox v55+.
You can find a similar, but still working Add-on here:
It works for me on 55.0.3 (32bit) together with Add-on "New Add-on Bar" here:
Hope it does it also 4U!
Thank you for maintaining this add-on for so long. Unfortunately when I was auto-upgraded to Firefox 55.0.1 (32-bit) it now reports, "this add-on is not compatible with your version of Firefox." :(
When the addon is compatible again I will raise my review to five stars.
I disagree with the people who need the actual inner viewport pixels: for that there are a dozen other good addons!
The unique thing about THIS resizer is that it measures the actual full browser windows. YES that differs from machine to machine and height of the top section is different for any person but I prefer a realworld total measurement over a theoretical "what could have been" as that is a false sense of consistency.
Back to why I retracted a star! No its not because of the added search for and hassle to install the Addon Bar. Its because when I set the browser window on my machine* to, say 1024x768, and make a printscreen photoshop measures 1014x763 and, when the browser is fullscreen it measures 2576x1616, while I have a native resolution of 2560x1600. As you see, the pixel counts are dead wrong and if this was fixed, i would give this addon seven out of seven stars and donate!
Good luck and Keep the genius vision alive by sticking to TOTAL browser measurement and not the inner window measurements since not a single person will ever use full screen for normal websurfing.
*) FireFox 54 64 bit Windows 10 64 bit.
The issue with the incorrect pixel size for a regular window is because the borders added by Windows are not included in the size, and there's no way for the extension to know how big they are. Different versions of Windows have different sizes, and you can also change the size if you want to. Windows 10 also has these borders, but Microsoft made them 100% transparent, so you don't see them but they are still part of the window size calculation. This is why the mouse cursor changes to the "resize" icon when you get close to the border of a window, even if you're not touching it yet.
Also, the fullscreen issue is the same. When Windows makes a window full screen, it really just resizes it to be a little bigger than the screen, so the borders are not visible.
I loved this! It gave me my optimum browser size and retained its preferred position. But it's no longer readily available because it's not listed in the customize window and thus no longer on my toolbars. I've tried everything suggested by various sites including the new add-on bar and Barlesque. I've been able to reclaim a few icons but not the ones I use most - including FireSizer. (Obviously I can still get at it through my add-ons page but that's cumbersome and inefficient.) Since this is also true of several other add-ons, I don't think it's the fault of this developer. Hence my rating. Highly recommended especially if it can be returned to the toolbars.
I did read the FAQ and I do understand your reasons... However I'd like to use Firesizer for recording tutorials/making screenshots for documentation and I really only need to capture the site content in a consistent format (HD) and not the full browser window...
Otherwise simple and great add-on. Thanks.
In that case, you will probably be better served using the built-in Responsive Design mode where you can set the viewport size. It's under Tools / Web Developer, or you can press Ctrl+Shift+M.
Exatamente o que preciso, com a simplicidade que eu queria!
The add-on/statusbar stub is still there in Fx44, so a little CSS is all I need to make it visible and use it. Love it!
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!
For anybody developing web sites, this is really helpful to have.
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.
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!
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.
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:
@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!
[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.
@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.
I made it so it shows the Viewport-Size!
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.
it does work good but i wish that i can save/restore the position of my window, thanks anyway.
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
Very useful to maintain firefox window size
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
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.
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.
This addon does the job pretty well but I have one issue with it.
When I start Firefox I get a blank Bar above the Add-on Bar which drive me crazy so I have to hide then show the Add-on Bar again to get raid of this annoying blank Bar. This has been for months and I thought it was a Firefox bug that will get fixed eventually but it didn't so I decided to make sure it has nothing to do with any of my installed addons. I started disabling every addon I installed then restart Firefox until this annoying blank Bar stopped showing .. that was after I disabled Firesizer. I actually did several tests before I write this review to make sure it's the reason for that.
I'm happy to give Firesizer five-stars rating once this issue has been resolved because the addon itself really does its job.
Thanks and looking forward to your reply.