Recent answers to How can I tell if this is a 32 bit or a 64 bit browser?https://support.mozilla.org/en-US/questions/10600572015-05-01T02:37:02-07:00Most probably your browser is 32 bit unless you have downloaded an unofficial build of firefox.
An e2015-05-01T02:37:02-07:00abhishek18kushwahhttps://support.mozilla.org/en-US/questions/1060057#answer-723916<p>Most probably your browser is 32 bit unless you have downloaded an unofficial build of firefox.
</p><p>An easy way to find out whether an application is 64 or 32-bit to check the installation folder:
</p><pre> (all 32-bit applications will be here:) C:\Program Files (x86)\
(all 64-bit applications will be here:) C:\Program Files\
</pre>Firefox Releases from mozilla.org including the current 37.0.2 is still Win32.
So for Win32 firefox 2015-05-01T02:30:22-07:00Jameshttps://support.mozilla.org/en-US/questions/1060057#answer-723914<p>Firefox Releases from <a href="http://mozilla.org" rel="nofollow">mozilla.org</a> including the current 37.0.2 is still Win32.
</p><p>So for Win32 firefox you need 32-bit Plugins.
</p><p>The Firefox 38.0 may be the first release to have Win64 builds along with Win32.
</p><p>The WOW64 in your Firefox useragent shows it is a Win32 application on 64-bit Windows.
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