Re: chromium: incognito mode saving cookies.
I happen to be using Chromium™ (package: chromium-browser) myself, along with the PepperFlash shockwave plug-in (PPA:skunk/pepper-flash; package: pepflashplayer-installer). I'm currently testing the extension ScriptSafe™ (available at the Google® Chrome® Web Store™), and it's basically a more complicated analogue to InformAction® NoScript™ (which I've used for years with Mozilla® Firefox®); the next Extension that I plan to test is a cookie-editor extension, and the Web Store has two (viz., Cookies and Gnaw Cookie) available.
Gigabyte® GA-MA78GM-S2HP (AMD® Athlon 64® X2 5600+ MPU, RS780G NB, SB710 SB)
Audio: ASUS® XONARESSENCESTX/A (PCIe, C-Media® CMI-8788 via PCIe-PCI bridge)