Comments on: How to install incompatible addons in Firefox 3

By: 131 Star Bloggers and Their Best Posts | Catherine Lawson

131 Star Bloggers and Their Best Posts | Catherine Lawson — Wed, 23 Jul 2008 15:16:04 +0000

[...] Barbara blogs about getting new media to work for you and her excellent posts include this one: Drop-Kick Humility – Be Who You Are PR Tim blogs about health, nutrition and alternative medicine and has plenty of interesting info, including this: Big Breakfast = Small Waistline? Daniel writes some really informative and helpful posts about computers and software, including this one: How To Install Incompatible Addons In Firefox 3 [...]

By: Matt

Matt — Tue, 22 Jul 2008 13:53:35 +0000

Someone else has also created a fixed version of ImagePref using these instructions:
http://chrisnoble.wordpress.com/2008/06/03/imagepref-add-on-for-firefox-30/
Although it doesn’t have some of the features that ImgLikeOpera does- it doesn’t have any of the bugs either!

By: Marc K

Marc K — Thu, 03 Jul 2008 09:23:58 +0000

Ah, I forgot that you can just add a property that isn’t in the list, and give it a user set value. So I did that for extensions.checkUpdateSecurity, and it worked fine in FF 3.0

By: Marc K

Marc K — Thu, 03 Jul 2008 08:47:34 +0000

Hmph, I can’t find extensions.checkUpdateSecurity in the final FF3 released last month :( It looks like they thought it would be a bad idea to keep it that simple. But I’m just starting to learn XUL and all that freaky extension developer stuff, and I wanted to install a dev extension that was recommended by the Mozilla Dev Centre itself…

By: Matt bentley

Matt bentley — Fri, 20 Jun 2008 01:36:17 +0000

Hi there-
re the person who was talking about ImgLikeOpera
I’ve created a fixed version which will install under FF3 here:
http://www.mattbentley.net/2008pt1.shtml#190608
Cheers,
M@

By: Pete Forman

Pete Forman — Wed, 18 Jun 2008 17:17:07 +0000

The Nightly Tester add-on offers a single button action to load other extensions that are not officially compatible.

https://addons.mozilla.org/en-US/firefox/addon/6543

By: daniel1992

daniel1992 — Fri, 23 May 2008 14:22:14 +0000

@Malih:
Did it yesterday =P

Daniel

By: Malih

Malih — Fri, 23 May 2008 08:43:53 +0000

thanks man, my imglikeopera is not working anymore since trying the firefox 3 beta, and now it works flawlessly, thank you very much… anyway about firebug : you should now able to get firebug 1.1 beta that’s compatible with ff 3, i tried and it works pretty much okay.

By: daniel1992

daniel1992 — Mon, 28 Apr 2008 04:05:56 +0000

@Scott:
Looking around, there is a procedure.. Try this maybe?

4) How do I unsign a jar file?
The quickest way to do this is get the WinZip program. Open up the jar file with WinZip. Locate the files in the meta-inf directory and delete all the signature files. The signature files are basically all the files in the meta-inf directory except the manifest.mf file. They will have extentions of .dsa and .sf.

Another (slower) way is to uncompress the entire jar file, delete the signature files, and then jar the file back up again:

1. Create a temporary directory to do this:
mkdir temp
copy tmaj.jar temp
cd temp
2. Uncompress the jar file and then delete it
jar -xvf tmaj.jar
del tmaj.jar
3. Delete the signature files in the meta-inf directory
del meta-inf\*.dsa
del meta-inf\*.sf
4. Recreate the jar file from the uncompressed files:
jar -cvf tmaj.jar .

from http://tmaj.pathology.jhmi.edu/doc/manual/FAQs.html#UNSIGN_JAR_FILE

Good luck!

Daniel

By: Scott Wegner

Scott Wegner — Sat, 26 Apr 2008 20:26:03 +0000

Do you know if there is an easy way to edit and then install a modified *signed* extension? It looks like there’s some extra files –specifically META-INF/zigbert.* — that makes an extension tamper-proof. Is it as easy as removing those files to get rid of the signing, or are they referenced elsewhere in the extension?

–Scott