FC5 and Acroread plugin

steve1961 · #1 21st March 2006, 01:25 PM

I've tried following Stanton Finley's how to for installing Adobe Acrobat but I can't seem to get the firefox plugin working. I've created the symbolic link to the plugin in /usr/lib/mozilla/plugins but it doesn't even show up in about

lugins. I tried reinstalling from scratch, with and without mozplugger installed, and putting the plugin in the /usr/lib/firefox-1.5.0.1/plugins directory, but nothing seems to work. Any ideas anyone?

markkuk · #2 21st March 2006, 01:29 PM

32-bit plugins like Acroread don't work with 64-bit Firefox.

steve1961 · #3 21st March 2006, 01:41 PM

I've installed the 32 bit version of FC5

Spookster · #4 21st March 2006, 05:54 PM

Have you tried logging out and logging back in?

steve1961 · #5 21st March 2006, 06:05 PM

Quote:

Originally Posted by Spookster

Have you tried logging out and logging back in?

If only it were that easy

. Yes, done all the obvious stuff. Stange thing is that all the other plugins in the mozilla plugins directory work fine, but Firefox seems tobe ignoring the existence of this one.

smfinley · #6 21st March 2006, 06:06 PM

Are you following this? "Go to "System" > "Administration" > "Security Level and Firewall". Enter your root password and click "ok". On the "SELinux" tab click on "Modify SELinux Policy", click on "Compatibility" to open it and tick the check box next to "Allow the use of shared libraries with Text Relocation". Click "ok"."

steve1961 · #7 21st March 2006, 06:31 PM

Quote:

Originally Posted by smfinley

Are you following this? "Go to "System" > "Administration" > "Security Level and Firewall". Enter your root password and click "ok". On the "SELinux" tab click on "Modify SELinux Policy", click on "Compatibility" to open it and tick the check box next to "Allow the use of shared libraries with Text Relocation". Click "ok"."

Hi Stanton. Yep, I'm following that how to to the letter and I did what you suggested.

markkuk · #8 21st March 2006, 09:12 PM

Can you start Acrobat Reader from the command line (with the "acroread" command)?

steve1961 · #9 21st March 2006, 09:37 PM

Quote:

Can you start Acrobat Reader from the command line (with the "acroread" command)?

Acrobat reader works fine, it's just the Firefox plugin that doesn't work.

jim · #10 21st March 2006, 09:42 PM

what is the linking you used ??

Quote:

cd /usr/lib/mozilla/plugins
ln -s /usr/local/Adobe/Acrobat7.0/Browser/intellinux/nppdf.so

steve1961 · #11 21st March 2006, 09:45 PM

Quote:

Originally Posted by fedorajim

what is the linking you used ??

Quote:

cd /usr/lib/mozilla/plugins
ln -s /usr/local/Adobe/Acrobat7.0/Browser/intellinux/nppdf.so

That's the one

jim · #12 21st March 2006, 10:37 PM

ll /usr/lib/mozilla/plugins

Quote:

[jim@Notebook ~]$ ll /usr/lib/mozilla/plugins
total 4
lrwxrwxrwx 1 root root 53 Mar 19 21:32 libjavaplugin_oji.so -> /opt/jre1.5.0_06/plugin/i386/ns7/libjavaplugin_oji.so
lrwxrwxrwx 1 root root 55 Mar 21 12:23 nppdf.so -> /usr/local/Adobe/Acrobat7.0/Browser/intellinux/nppdf.so
[jim@Notebook ~]$

steve1961 · #13 22nd March 2006, 04:17 PM

OK problem solved. I uninstalled version 7.01 and installed 7.05 from here:

http://plugindoc.mozdev.org/linux.html#Acrobat

Everything now works as it should.

ignatz · #14 17th October 2006, 11:59 PM

My experiences, for those who come looking at this.

I just upgraded to FC5, and had the same issue that steve1961 did. I tried and checked all the things suggested here. I couldn't try upgrading to Acroread version 7.05, because I was already running that. But 7.08 is now available, and upgrading to that version fixed the problem. (For all I know, removing and then reinstalling the same version of Acroread might have worked.)

kldixon · #15 29th October 2006, 07:03 PM

Is it a good idea to use the acroread plugin at all?

I have just made some investigations on AdobeReader_enu-7.0.8-1 installed on FC6. After modifying the acroread script, the standalone works fine, but to make the plugin nppdf.so work you have to knock a pretty large hole in SELinux.

Check the SELinux settings from:-

System->Administration->Security Level and Firewall->
(password)
SELinux->Modify SELinux Policy->Memory Protection

unchecking:-
Allow all unconfined executables to use libraries requiring text relocation that are not labeled textrel_shlib_t

causes firefox to output:-
LoadPlugin: failed to initialize shared library /usr/lib/mozilla/plugins/nppdf.so [/usr/lib/mozilla/plugins/nppdf.so: cannot restore segment prot after reloc: Permission denied]

unchecking:-
Allow unconfined executables to make their stack executable. This should never, ever be necessary. Probably indicates a badly coded executable, but could indicate an attack. This executable should be reported in bugzilla

causes firefox to output:-
LoadPlugin: failed to initialize shared library /usr/lib/mozilla/plugins/nppdf.so [/usr/lib/mozilla/plugins/nppdf.so: cannot enable executable stack as shared object requires: Permission denied]

To make the plugin work you have to allow stack segments to be executable!

"Allow unconfined executables to make their stack executable. ..." is selected by default in the FC6 distribution. Unchecking it also disables Sun Java:-

LoadPlugin: failed to initialize shared library /opt/java/jre1.5.0_09/plugin/i386/ns7/libjavaplugin_oji.so [/opt/java/jre1.5.0_09/plugin/i386/ns7/libjavaplugin_oji.so: cannot enable executable stack as shared object requires: Permission denied]

but Shockwave Flash 9.0 d55 seems to work.

Perhaps Stanton should put a health warning in his web page for FC6?