For this second beta of the cycle, some telemetry changes for Fennec, some videos improvements and releng fixes.

• 34 changesets
• 46 files changed
• 733 insertions
• 145 deletions

Extension	Occurrences
cpp	16
java	7
h	6
py	3
js	3
jsm	2
html	2
xml	1
txt	1
rst	1
rdf	1
json	1
ini	1
dtd	1

Module	Occurrences
dom	13
mobile	10
layout	8
toolkit	7
testing	3
browser	2
security	1
netwerk	1
image	1

List of changesets:

Jordan Lund	Bug 1220765 - 43.0b1 build1 fennec repacks failing to upload and submit to taskcluster, DONTBUILD r=rail, a=releases - 6e78daec52af
Nick Thomas	Bug 1221386, checksums failing in 43.0b1, r=jlund a=automation DONTBUILD - 9211dd55954e
Rail Aliiev	Bug 1218763 - Antivirus should retry on SSLError, r=nthomas, a=lizzard DONTBUILD - 40ae04af867c
Rail Aliiev	Bug 1218763 - Antivirus should retry on SSLError. r=nthomas a=lizzard DONTBUILD - f2f176ef9b45
Rail Aliiev	Bug 1220641 - Push to mirrors prefix is too greedy. r=Callek,a=ritu DONTBUILD - 6a65996ee241
Dave Townsend	Bug 1220198 - Never appDisable experiments if they don't have the right app compatibility information available. r=rhelmer, a=lizzard - b87f9e2d6355
Margaret Leibovic	Bug 1218858 - Update tracking protection language in about:privatebrowsing (string change for en-US uplift only). r=mfinkle, L10n=flod, a=lizzard - eb3dd7f7d487
Jean-Yves Avenard	Bug 1217170: P1. Rename functions to explicitly reflect what they are doing. r=kentuckyfriedtakahe a=lizzard - 0e749793c4c6
Jean-Yves Avenard	Bug 1217170: [MSE] P2. Enable WebM/MSE on systems with no MP4/H264 support. r=kentuckyfriedtakahe a=lizzard - 75d6468d0be1
Alessio Placitelli	Bug 1211404 - Limit the length of addon description (& other text fields) in Telemetry. r=gfritzsche, a=sylvestre - e31f1aa9d84d
Jim Chen	Bug 1199658 - Add test for text duplication when JS resets input value; r=esawin, a=lizzard - eae5e25b18b5
Jim Chen	Bug 1199658 - Don't commit Java composition when Gecko side commits its composition; r=esawin, a=lizzard - 6a0b1216e1a5
Mark Finkle	Bug 1219447 - Add a UI Telemetry probe for the 'Add to Reading List' web context menu. r=margaret, a=sylvestre - e728e4f632e5
Mark Finkle	Bug 1219882 - Add a 'save.1' probe for the 'Bookmark Link' web context menu. r=margaret, a=sylvestre - a54630b3ac76
Andreas Pehrson	Bug 1216417 - Make sure audio output streams are created after adding an audio output. r=baku, r=roc, a=ritu, a=sylvestre - 37d6cc360023
Andreas Pehrson	Bug 1216417 - Add logging for audio and video output changes in MSG. r=roc, a=ritu, a=sylvestre - 09bdeec1b65c
Timothy Nikkel	Bug 1219501 - In imagelib, initialize the number of cores to at least 1 in case of error. r=seth, a=ritu - 412a3f1e075f
Timothy Nikkel	Bug 1219501 - Limit total number of image decoding threads to 32 regardless of number asked for. r=seth, a=ritu - c26f56bea5e9
Sebastian Kaspari	Bug 1182918 - Tab Queue: Add telemetry for double tap action. r=mfinkle, a=sylvestre - ee8a828b4974
Jim Chen	Bug 1213888 - Block LayerView descendants from interfering with focus. r=kats, a=ritu, a=sylvestre - 90cae878a97e
Jed Davis	Bug 1207790 - Fix sandbox build for older Linux distributions. r=gdestuynder, a=sylvestre - 89e3c373b3a4
Kyle Machulis	Bug 1218952 - Add support for object tags to youtube telemetry tracking; r=cpeterson, a=sylvestre - be9dcc3b97b3
JW Wang	Bug 1220551. Part 1 - fix the parameters passed to mBufferedState->NotifyDataArrived(). r=jya, a=sylvestre - 9eb17d1e915c
Gijs Kruitbosch	Bug 1221444, r=bz, a=sylvestre - 1692a311615d
Mason Chang	Bug 1220699 - Add telemetry probe to measure vsync latency in the refresh driver in chrome process. r=avih, a=sylvestre - d681ec6fe6b2
Jim Chen	Bug 1219833 - Respect composition underline color; r=masayuki, a=sylvestre - cd32550ec7fe
Neil Rashbrook	Bug 1211708 - Allow themes to specify XBL bindings even in unprivileged documents. r=sicking, a=sylvestre - 1a56a93a6292
Karl Tomlinson	Bug 1220037 - pack and unpack Nyquist for MOZ_LIBAV_FFT. r=padenot, a=sylvestre - ab27c2db7e68
Karl Tomlinson	Bug 1220037 - test convolution. r=padenot, a=sylvestre - d3b021968c63
Jean-Yves Avenard	Bug 1219134: P1. Fix pts calculation in FFmpeg video decoder. r=edwin a=sylvestre - ce3f2c696251
Jean-Yves Avenard	Bug 1219134: P2. Use LibAV/FFmpeg logic to detect invalid pts. r=edwin a=sylvestre - dc997e552ee6
Jean-Yves Avenard	Bug 1219134: P3. Properly set the keyframe flag. r=edwin a=sylvestre - 93eddf049b08
Jean-Yves Avenard	Bug 1219134: P4. Properly assign the decoded sample duration. r=edwin a=sylvestre - 0056c6a320b7
Timothy Nikkel	Bug 1199131 - Crash when click on a SELECT wich has at least 1 OPTION with background-attachment:fixed and a background. r=mstange, a=lizzard - c6d927b2b229

http://release.mozilla.org/statistics/43/2015/11/13/fx-43-b1-to-b2.html