User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.10pre) Gecko/20100914 Namoroka/3.6.10pre ( .NET CLR 3.5.30729) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.10pre) Gecko/20100914 Namoroka/3.6.10pre ( .NET CLR 3.5.30729) One day I've installed a portable version of Firefox and manually updated it to some pre-release version of 3.6. Then I regularly updated it via app update to newer pre-release builds. Now it's Namoroka 3.6.10 pre-release, and I decided to update it to the 3.6.10 release and live with stable releases starting from the day. I've searched through web, docs and support forum and changed the app.update.channel to "release" value (no quotation marks, of course!) and clicked on "Check for updates" in the "Help" menu, and it proposed me to update to 3.6.11 pre-release. Hmmmm! - said I and restarted FF. It restarted, auto-checked for updates and proposed me to update to 3.6.11 pre-release again. Hmmmmmmmm! - said I and re-checked about:config just to find everything is OK and the app.update.channel is set to "release". But it still works as if it was "nightly", and I tried "beta" channel that didn't work for me as well! Please advice me what could I do to return to "beta" or "release" channel from nightly builds? Reproducible: Always Steps to Reproduce: 1. Install FF 3.6.10 pre-release, turn on auto update. 2. Maybe - update some times. 3. Change app.update.channel setting to "release" or "beta" and try to update. Actual Results: You're proposed to update to 3.6.11 pre-release Expected Results: It should find out the latest release/beta build and propose to update to it: 3.6.10 release for "release" channel, don't know what it should be for "beta" channel. Built from http://hg.mozilla.org/releases/mozilla-1.9.2/rev/3e443cd66408 target - i686-pc-mingw32 Build tools: Compiler Version Compiler flags cl 14.00.50727.762 -TC -nologo -W3 -Gy -Fdgenerated.pdb -DNDEBUG -DTRIMMED -Zi -UDEBUG -DNDEBUG -GL -wd4624 -wd4952 -O1 cl 14.00.50727.762 -GR- -TP -nologo -Zc:wchar_t- -W3 -Gy -Fdgenerated.pdb -DNDEBUG -DTRIMMED -Zi -UDEBUG -DNDEBUG -GL -wd4624 -wd4952 -O1 Configure arguments --enable-application=browser --enable-update-channel=nightly --enable-update-packaging --enable-jemalloc --enable-tests

Are you editing app.update.channel via channel-prefs.js in the Firefox install directory or an extension such as Update Channel Selector? Using about:config has no effect. See http://kb.mozillazine.org/App.update.channel#Caveats

Thank you for your help!!! Update Channel Selector extension helped.

I was too fast to close the issue :(

The issue you reported here WFM (works for me) on trunk. 1. Downloaded older nightly http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/2010-09-26-04-mozilla-central/firefox-4.0b7pre.en-US.win32.zip 2. Edited channel-prefs.js to change nightly to beta. 3. Opened the about window "Minefield is up to date" - was not presented with a nightly update.

That's right, it doesn't propose me to update to the new nightly - but it doesn't propose me to update to the new release as well! See #600818 for more info.

Updating from one build to another only works if the initial build and that on the update channel are from the same branch. The channel is changed, but you can't update beta to release or to aurora. I think this is by design though.

Updating from one channel to another is not supported. (In reply to Alex the Marrch Ca'at from comment #0) >... > Please advice me what could I do to return to "beta" or "release" > channel from nightly builds? To change from one channel to another you have to install a build for that channel.