Is there any options/addons for selecting/changing image size when viewing images?

Question

When clicking to open images when on web pages there is no option to select size.
I'm looking at some pages that have images (mostly jpg) I like to compare and that is very hard when all images open in a size that normally fill most of the browser window.
So I wonder if there is some hidden options or addons for selecting image size when opening images for viewing?
I have tried Image resizer/scaler, image zoom and show picture with mix results. Image resizer/scaler and image zoom allow resizing of images, but when opening images on same tab as web page the white image "frame" that is visible when reducing image size is left in original size. This make viewing and opening other pages a hazard.
I'm grateful for any help...cheers :-)
Picture of white frame
http://s25.postimg.org/z1ubo6zun/Remove_Exterior_Fog_at_Skyrim_Nexus_mods_and_c.png

Answer 1

hehe no offense, but I'm not following the version rushing from Mozilla. I'm using many customizations and addons and it is a nightmare to change to a new version and practically impossible to use last version. Also the FIrefox history have shown that earlier versions have both been more stable and had better implementation of features.
Spending hours customizing and finding out that addons dont work with new version every time Firefox come with a new version , no thanks. For that to happen Firefox have to be more compatible across versions and more friendly toward customization in updates and new versions. I have used Firefox for at least 8-9 years with practically no security problems and one thing I have learned is: dont update or install next version if the version I have is working well.
Maybe I should have mentioned this in this question, that Im using v26 and that my FIrefox is heavily modified with addons and customizations.
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Anyway I dont think any of my customizations or addons should create a white frame behind images, but I'm asking to find out if you guys also get this white frame when resizing pictures to a smaller size after clicking images for viewing.