Perhaps its just me, but the image quality of pictures on websites when surfing via 3G/umts with vodafone really makes me sick. The images are blurred heavily just to save some bandwith for my flatrate 
After it now bothered me enough to take a closer look it seems t-online did it first and now vodafone does the same (proxying the images to much lower quality level). But at least for the firefox browser there is a workaround i found (besides reloading every page) that has no noticeable speed downside on my system but brings me full joy of websurfing back:
- Install “Modify Headers” add-on for firefox
- In “Extras” or “Tools” menu go on “modify headers”
- at the top select “add” (from dropdown menu), “Pragma”, “no-transform” (each without the quotes) and click the Add-Button next to it
- at the top select “add”, “Cache-Control”, “no-transform” and again click the Add-Button
- You should now have two rule entries each activated (a big green dot on their right side)
- close that window
- enjoy surfing
There is a perl script available that communicates with the network and disables compression (somebody just sniffed the magic packet that is sent to a magic port on the IP address 1.2.3.4). The advantage of this approach is, that you can dynamically enable or disable the compression (if you only have GPRS coverage, it might be actually useful…) and that it also works for wget and Konqueror. I’d blog about it *if* I was able to attach files to blog posts…
[...] reading another of Frank’s blog posts, I remembered that I had the same problem some time ago and used bmctl.pl, a perl script that I had [...]