499247 - Cannot Install any Addons: Unexpected installation error -203

Status: RESOLVED WORKSFORME

(Toolkit :: Add-ons Manager, defect)

Description

[Jacobi]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1) Gecko/20090615 Firefox/3.5 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1) Gecko/20090615 Firefox/3.5 (.NET CLR 3.5.30729)

You cannot use or install any addons for any of the firefox builds; the beta or 3.11. I have tried both to no success. Any addons i had in stalled are rendered useless; they say they're installed but they dont work (this goes for any themes as well).
This is the exact error that occurs when trying to install chromifox companion on 3.5RC

Firefox could not install the file at 

https://addons.mozilla.org/en-US/firefox/downloads/latest/10339/addon-10339-latest.xpi

because: Unexpected installation error
Review the Error Console log for more details.
-203

All other addons produce similar errors as well.

Reproducible: Always

Steps to Reproduce:
1.Open Firefox
Actual Results:  
No addons were displayed properly (themes etc.) Or a failed installation

Expected Results:  
Addons should do what they're designed to do or they should be installed without error.

Comment 1

[Michael Ryan]

See this page:
http://kb.mozillazine.org/Unable_to_install_themes_or_extensions_-_Firefox#Unexpected_installation_error_-203

Comment 2

[Andre Klapper]

[BUmping version - still in 3.6 according to duplicates]

Comment 5

[Dave Townsend [:mossop]]

Is this still a problem in more recent versions of Firefox?

Comment 6

[Brian King [:kinger]]

(In reply to Dave Townsend (:Mossop) from comment #5)
> Is this still a problem in more recent versions of Firefox?

I haven't seen it in a long time.

Comment 7

[Dave Townsend [:mossop]]

Since we rewrote the entire add-ons manager and I don't think it is even physically possible to get such an error message any more I don't think we need to keep this bug open any longer.