You may have noticed that Firefox changes the size of an image on the web based on the size of the Firefox window. This can be easily tested by opening an image in the browser and modifying the size of the browser window. Firefox automatically adjusts the size of the image. Some users may prefer that the browser does not manipulate the images, so that they are displayed in the intended size regardless of the size of the browser window.
Take the Ghacks logo for instance. You will notice that resizing the window in Firefox after loading the image will reduce the size of the image automatically; Firefox resizes the image dynamically.
If the browser window is large enough the image is shown in its original size.
If the browser window is resized, the image is resized dynamically as well.
Firefox has a configuration setting for that. To make the change enter about:config in the Firefox address bar. First time users need to click the I'll be careful button.
Enter the parameter browser.enable_automatic_image_resizing in the filter list and double-click it to change the value from true to false. Firefox will dynamically resize images if the value is set to true. A value of false will show the images always in their original size regardless of the browser window size.
The change is enabled immediately. Open tabs need to be reloaded once for the change to become active though.
Why would someone want to make the change? It makes sense for very large images, that exceed the screen resolution. Users who want to view those images in their original size need to download them to the computer to do so, as Firefox resizes the images automatically. Making the preference change allows those users to view the images directly in the web browser.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.