cannot install Firefox stability update - License file missing




9 years ago
8 years ago


(Reporter: sschroedl, Unassigned)


Firefox Tracking Flags

(Not tracked)



(1 attachment)



9 years ago
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20090715 Firefox/3.5.1 (.NET CLR 3.5.30729) AutoPager/ (
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20090715 Firefox/3.5.1 (.NET CLR 3.5.30729) AutoPager/ (

Software license agreement box says "The license file for this version cannot be found. Please visit the Firefox homepage for more information." Tabs for accepting license agreement are greyed out. Reinstalled Firefox, still cannot complete update.

Reproducible: Always

Steps to Reproduce:
1. Check for updates
2. Update firefox, restart
3. Software license agreement box with greyed out tabs
Actual Results:  
Cannot update

Expected Results:  
Option to accept license agreement available to select, and complete update

Comment 1

9 years ago
Created attachment 392714 [details]

Comment 2

9 years ago
Not a security-sensitive bug.

What version of Firefox are you currently running, and where did you get it?
Group: core-security
Component: Installer → General
QA Contact: installer → general
I don't recognize that hat icon at all, and Firefox no longer has a EULA-type license screen, just "about:rights". I do see license-showing code still exists in the updater but not sure what would be triggering it.

You were/are using 3.5.1 and are trying to upgrade to 3.5.2? Or is this a different copy/machine where you're upgrading from 3.0.12 to 3.5.1 ?

By "reinstall Firefox" do you mean reinstalling from your old downloaded installer, or did you go to to install a new copy? I'd be somewhat disturbed if the fresh installer was getting this kind of update screen.

You've also got some "AutoPager" thing that's sticking advertisement into the user-agent you send with every server request -- could that require a license? Looks like a regular add-on so it shouldn't interfere with the update process.(You've also got Microsoft's .NET cruft added, which is annoying but hasn't caused this kind of trouble.)

That does appear to be our string:

Comment 4

9 years ago
Version 3.5.2
downloaded from the
When I heard of the update,  I clicked on
Help>Check for updates
Then followed the screens to only be stuck in this loop of update/reinstall Firefox.
I haven't heard of anyone having this problem, but maybe the people have. 

You could try "safe mode", which will temporarily disable your addons -- if that works then we can look into what you might have installed.
Or you could just go to and download a fresh copy of
3.5.2 and bypass the updater entirely while you wait for us to figure it out.

Comment 7

9 years ago
Downloading a fresh copy of 3.5.2 worked. thanks!
Cheng: did you get other reports of this at the support site? If so maybe we should leave the bug open to figure it out, otherwise maybe it's "WFM".

Comment 9

9 years ago
I found on report of this happening to thunderbird, but that was it.
Last Resolved: 9 years ago
Resolution: --- → WORKSFORME

Comment 10

8 years ago
See also Thunderbird bug 466187 comment 9.
The displaying of the license page is the symptom and the root cause can be several different things. If people experience this they should file individual bugs so the root cause can be tracked down.
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