Ever since Portable Firefox v42 came out I can no longer use it because it simply blue screens my computer before it ever finishes loading; it installs fine, but won't run at all. I didn't say anything before because I was waiting to see if v43 did the same thing and it does. I noticed that the filesize of the v41 install file is 43MB whilst the filesize of v43 is 93MB, more than double. I didn't save the v42 file so I don't know if whatever is in those additional 50MB is what's causing the issue. No other program causes this behavior. I'm running with limited rights on a Win 7 64 bit box.
I appreciate anything on this.
Cheers.
in file size may be due to the inclusion of 64 bit support that Firefox now has.
https://portableapps.com/support/firefox_portable#32and64
“Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.” Dr. Seuss
Firefox is now both the 32-bit and 64-bit together, so it's bigger. The 64-bit version may not play nicely with your PC so you could try the 32-bit version by forcing it: https://portableapps.com/support/firefox_portable#32and64
Note that apps can't crash Windows on their own. But they can trigger underlying issues with your system. This is most common with video drivers. The most famous incident being a widespread buggy ATI laptop driver that Mozilla had to specifically detect in Firefox and work around. Try updating your video drivers specifically along with all Windows updates.
Sometimes, the impossible can become possible, if you're awesome!