InformAction Forums

This is what I get

Firefox could not install the file at

https://addons.mozilla.org/en-US/firefo ... ddondetail

because: Unexpected installation error
Review the Error Console log for more details.
and this is what I get when i check the log

Error: e.location.getItemLocation(e.id) is undefined
Source File: file:///C:/Program%20Files%20(x86)/Mozilla%20Firefox/components/nsExtensionManager.js
Line: 4116

Confirming you attempted to download directly from https://addons.mozilla.org/en-US/firefox/addon/722 ?

As a quick work-around pending Giorgio investigating the issue, you can download NoScript directly from https://secure.informaction.com/downloa ... 9.9.18.xpi. Does that work?

In either case, make sure that the site in question, either https://addons.mozilla.org, or informaction.com has permission to install addons, either via Firefox Tools > Options > Security > "Warn me when sites try to install addons" > Exceptions: the site must be in the Exceptions list, or else you can click "Allow" in the pop-up bar at the top, for a one-time allowance of add-ons from that site.

Does this fix the issue?

If not, please note that the Microsoft .NET installed on your machine has caused numerous problems for Firefox and its extensions. Many users are removing it. That issue can be explored if the above do not resolve the issue. Let us know.

I'm having virtually the same problem that this thread is addressing. Here are my answers to your questions.

Tom T. wrote:Confirming you attempted to download directly from https://addons.mozilla.org/en-US/firefox/addon/722 ?

Yes, I make it past this step.

Tom T. wrote:As a quick work-around pending Giorgio investigating the issue, you can download NoScript directly from https://secure.informaction.com/downloa ... 9.9.18.xpi. Does that work?

No! It is in this step where the installation process crashes.

Tom T. wrote:In either case, make sure that the site in question, either https://addons.mozilla.org, or informaction.com has permission to install addons, either via Firefox Tools > Options > Security > "Warn me when sites try to install addons" > Exceptions: the site must be in the Exceptions list, or else you can click "Allow" in the pop-up bar at the top, for a one-time allowance of add-ons from that site.

Any permissions requested were given, and I haven't had problems with installing other software from the internet.

Tom T. wrote:Does this fix the issue?

No!

Tom T. wrote:If not, please note that the Microsoft .NET installed on your machine has caused numerous problems for Firefox and its extensions. Many users are removing it. That issue can be explored if the above do not resolve the issue. Let us know.

Before I try this, what risks are involved to my OS? What will this do to my computer? I'm running an up to date version of Windows XP Professional.

By the way, that Error Console note in the previous post (mine said "file:///C:/Program%20Files/Mozilla%20Firefox/components/nsExtensionManager.js") identifies what I think may be the C++ program that does the installation. I believe the "Line: xxxx" identifies where the program crashed. My last crash gave this as "Line: 4082". I double clicked on the file name, the file opened right up, and I had no problem finding that particular line number.

I don't know C++, but I think I could email you the file if it would help. You'd have to give me an address to send it to of course.

Thanks a whole bunch!

Looks like an Add-Ons Manager corruption.
Could you try to follow the steps outlined in this article?

Giorgio Maone wrote:Looks like an Add-Ons Manager corruption.
Could you try to follow the steps outlined in this article?

Hey, that did it! Woo Hoo! Thank you so much!

Looks like an Add-Ons Manager corruption.
Could you try to follow the steps outlined in this article?

this worked, thanks

Thanks very much, this worked

Giorgio -- Thanks! Here it is March 2011 and the solution in that article is still working

I had the same problem on the 5th of March when I attempted to install NoScript v2.0.9.9 from https://secure.informaction.com/downloa ... .0.9.9.xpi

Here is how I resolved the problem:
1. Restore my Firefox profile from backup (before the failed NoScript v2.0.9.9 install)
2. Downloaded NoScript v2.0.9.9 from the same link on the 7th of March
3. Install NoScript as usual

There was a file size difference between NoScript v2.0.9.9 XPI files I downloaded on the 5th and 7th of March. Hope this helps other people with the same problem.

Giorgio, I'm so grateful; thank you! You saved me much time, which, when dealing with computer grief, is profound. Very best to you!