cannot install applets in firefox 3.5

Asked by edoardo on 2009-12-26

Binary package hint: firefox-3.5

When I try to install new applets like download helper or fire FTP, the installation end up reporting:

Firefox isn't able to install the file in
Cause: Download error

ubuntu 9.10 amd64

ProblemType: Bug
Architecture: amd64
Date: Sat Dec 26 10:14:25 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
Package: firefox-3.5 3.5.6+nobinonly-0ubuntu0.9.10.1
ProcVersionSignature: Ubuntu 2.6.31-17.54-generic
SourcePackage: firefox-3.5
Uname: Linux 2.6.31-17-generic x86_64

Question information

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Ubuntu firefox-3.5 Edit question
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This question was originally filed as bug #500492.

Revision history for this message
edoardo (me-ipse) said :
Revision history for this message
Micah Gersten (micahg) said :

Thank you for taking the time to report this issue and helping to make Ubuntu better. Examining the information you have given us, this does not appear to be a bug report so we are closing it and converting it to a question in the support tracker. We appreciate the difficulties you are facing, but it would make more sense to raise problems you are having in the support tracker at if you are uncertain if they are bugs. For help on reporting bugs, see

Revision history for this message
Micah Gersten (micahg) said :

Here's the Mozilla FAQ for this situation:

Also, have you ever run Firefox with sudo? If yes, you might need to fix some permissions on files in your home directory. If not, please DON'T run as sudo.

The two main reasons they give are Firefox cache and Network issues.

Download Error -228

From Mozilla FAQ:

This error message may be caused by having the Firefox cache disabled. To re-enable:

    * Firefox 2 and above: Tools -> Options -> Advanced -> Network
    * Firefox 1.5: Tools -> Options -> Privacy -> Cache

Make sure the cache is at least 1 MB (50 MB is the default setting).

Failing that, a workaround is to right-click the download link, select "Save Link As..." and download the .xpi or .jar file to your computer. You can then manually install it by dragging the file icon onto an open Firefox window].

Note: The Download Error -228 message may also be seen if the required .xpi or .jar file is not actually present on the server site. You can simply try again at a later time or check other download links on both the same site and a different site, before assuming that your own setup is at fault.

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