Lightroom 3.6 printing issues on Mac computers

Question

Hi all,
I wanted to garner some feedback from others who have experienced the same issues I have when printing from LR on any Mac-based computer. I've observed these issues consistently on every Mac I've used Lightroom on, from OSX 10.5 to the newest 10.7. I will frame the two issues in relation to how LR behaves on a PC.
As you'll probably determine, these issues could be considered rather minor, but they hinder my specific workflow to a significant degree. I am using Lightroom at crowded events and printing on-the-spot via a dye-sub printer. In this environment, every second counts to keep people waiting for as short a time as possible.
1. Upon submitting a print job on a Mac, Lightroom will become unresponsive for a solid four or five seconds (spinning beach ball and everything), preventing you from browsing through more photos until it finally snaps back in to action. On the PC, the print job is submitted practically instantaneously with no interruption in interactivity.
2. When submitting a print job with several images selected, on a PC the printer will begin printing as soon as the first image in the batch is processed; in contrast, on the Mac, the entire batch has to finish processing before the print job commences. Obviously this is quite un-ideal if you want to print out, say, one copy of ten different photos at once. And going through the photos and printing one by one isn't an option either due to issue number 1.
I would assume these issues have something to do with print driver differences on OSX compared to Windows, but I've also experienced the same problems across two different brands of dye-sub printers, which rules out lousy drivers for one printer specifically.
Thank you for any feedback or suggestions!

Answer 1

P.S. If the above doesn't work, even after restarting Firefox:
You could try disabling the blocklist, which isn't normally recommended since it will remove ALL blocks, many of which are in place for security reasons. If you want to do this,
'''FIRST: '''Change the '''extensions.blocklist.enabled''' preference to '''false''' in about:config
# In the [[Location bar autocomplete|Location bar]], type '''about:config''' and press '''Enter'''. The about:config "''This might void your warranty!''" warning page may appear.
# (If necessary) Click '''I'll be careful, I promise!''', to continue to the about:config page.
# Double-click on '''extensions.blocklist.enabled''' in the list of preferences to change its value to '''false'''.
'''NEXT:''' Quit Firefox, then open the [[Profiles|Firefox profile folder]] and remove the file '''blocklist.xml'''
Ref: https://bugzilla.mozilla.org/show_bug.cgi?id=754723#c50