1167583 - registry installed extension not catch rdf file change

Status: RESOLVED INVALID

(Toolkit :: Add-ons Manager, defect)

Description

[Max]

Attachment: ffext.zip

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.152 Safari/537.36 OPR/29.0.1795.60

Steps to reproduce:

I have registry installed extension as:
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Mozilla\Firefox\Extensions]
"my_ffext@my_ff_text.com"= "c:\Program Files (x86)\MyFFExtension"

Also my extension contains some .xpt files.

When I replace .rdf file by a new .rdf file with a new extension version and new supported browser version, sometimes FireFox doesn't see changes and doesn't refresh plug-in in add-ons list.

For ex:
I switch between 1.6.7/install.rdf and 1.6.8/install.rdf many times (see attachments).




Actual results:

Sometimes nothing happens.


Expected results:

Every time FF has to refresh my extension info.

Comment 2

[Dave Townsend [:mossop]]

It would be too slow for Firefox to completely rescan every install.rdf file on startup so instead we check to see if the file's modification time has changed. If it hasn't we assume the contents haven't changed. Looking in the zip file provided all the file modification times for the install.rdf files are within a second of each other. This isn't enough to trigger a rescan (some filesystems have a time resolution of ~2 seconds).