Ever since I installed Google Chrome my Amazon Instant Video Player only streams on the lowest bitrate.
Somehow the pepper-flash messed with HAL in Firefox:
"Our developers stated this: It appears that Pepper Flash (bundled with Chrome) is conflicting with the standard NPAPI and ActiveX Flash plugins. To resolve this problem remove all Adobe Flash components/plugins and completely remove Chrome. After, reinstall Flash(latest version). Make sure that you still have Google Chrome off of the computer, since one of the root causes seem to be that Pepper Flash (bundled with Chrome) is causing this. You can now either use Firefox or IE, and update the flash on one of those browsers and see if that works. Another user with this issue used IE9 34 bit and 64 bit version both, and they both streamed at 2500 kbps BW in 720p. They were getting the good old 348 before that. They later reinstalled Chrome(which is preloaded with Flash) and the issue repeated itself and therefore the only option was to remove Chrome again."
I tried everything: purging/reinstalling HAL, purging chrome, purging/reinstalling firefox.
If anyone has any suggestions I'd love to know.