Under linux, you can open djvu file by web browser . Bust you need install plug in.
First you need download library and source code from http://djvu.sourceforge.net/;
Second you need do :
./configure - -prefix=$path where you want to install$
Third open Konqueror, select "Settings->Configure Konqueror" and check "Plugins". If you can't see $prefix path$/lib/netscape/plugins, you need type new and add this file in.
Then you can type scan for new plugins. After that ,you type "Plugins", you will see the file $/lib/netscape/plugins/nsdejavu.so there..
If you want to use Opera, you can do:
After open "pluginpath.ini", you can add "$$/lib/netscape/plugins/nsdejavu.so=1" to that file.
Work very nicely.
Ok, congratulation, you can see djvu by konqueror now....
More information, you can get from:
(This is very useful)
(This website is very bad I think..Because you can't find how to install the plugins to web browsers)