Dear Ed,
it is the restricted user rights which prevents from installing the search plug-in. All folders under "Program Files" have not the right to create files or to write for restricted users. And the Firefox help does ot state this fact. On the other side I (now in the role of an administrator) cannot setup my computer to have different search engines for each user. Fortunatly I have my own hard drive and OS otherwise my family will now have NI Discussion forum in the list of search engines.
As far as I have seen with two test it works good.
BTW: The restricted right is also a problem with LV. I (now in the role of a simple programmer) have to bet my administrator (myself see above) to open the LabVIEW.ini file, Help, Examples, Instr.lib and User.lib folders so that I can use them normally.
Waldemar
Using 7.1.1, 8.5.1, 8.6.1, 2009 on XP and RT
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