[new locale] Estonian (et) (thanks to Maidur)
[locale] Upper Sorbian (hsb) translation updated (thanks to milupo)
[locale] Lower Sorbian (dsb) translation updated (thanks to milupo)
[locale] Chinese (zh-CN) translation updated (thanks to Cye3s)
[locale] Polish (pl-PL) translation updated (thanks to Mrere)
[locale] Spanish (es) translation updated (thanks to strel)
[locale] Slovenian (sl-SI) translation updated (thanks to Klofutar)
[locale] Ukrainian (uk) translation updated (thanks to Sacredwheels)
[locale] Greek (el) translation updated (thanks to George M.)
[locale] Czech (cs) locale updated (thanks to poljos)
[fix] go button direction for rtl locales
[fix] Windows: 'restore defaults' did not restore correct appbutton
[fix] appbutton on titlebar (icon only): height issue
[fix] Fx42+: minor issue with 'padlock icon options'
[fix] squared tabs australized v1 & v2: lw-theme glitches
[fix] minor prefwindow tweaks and fixes
[fix] minor css fixes
[fix] add-on version number option: issue when some add-ons get uninstalled
[fix] Win10 & Fx40+: borders of " alt. curved tabs"
[fix] Windows & Fx40+ & HiDPI: inverted icons settings
[fix] Fx43+ & tab separator options: separator visibility/appearance
[fix] Fx42 (20150825+) & small button view: identity box alignment
[fix] Fx42 (20150825+) & mov. back-forward: identity box alignment
[fix] Win10: options to hide top toolbar borders
[fix] Win7 & Fx40+ & HiDPI: big icon mode
[fix] Fx42+: update indicator badge on panel menu button
[fix] big icon mode: loop-button size glitch on some toolbars
[new option > General UI (1)] open 'about:preferences' in a window
-->
http://i.imgur.com/rMswKXI.png[new option > General UI (1)] alternative 'options page' appearance
-->
http://i.imgur.com/oEBvS9z.png[new (sub)option > Toolbars (2)] Windows 10: hide OS caption buttons
* mainly hides default caption buttons on third party themes
[new option > Location Bar] Fx41+: remove reload, stop, go separators and spaces
[new option > Tabs (1)] nav-bar throbber animation for tabs
[new option > Tabs (2)] more tab separators (Windows/MacOSX only)
[new option > General UI (1)] general close icons
[new option > Add-ons Manager] toggle old 'xpi-install window'
[change] 'restore defaults' only affects CTRs preferences from now on
[change] added more preferences to CTRs "classic preset"
[change] internal changes to avoid issues with overlay files
[change] Fx40+: removed obsolete developer theme switches
* 'browser.devedition.theme.enabled' pref got removed from Fx40+
[change] moved 'Prevent Developer theme from being enabled' option
* The option is now in 'CTR category' > 'other settings'.
* The developer theme currently only exists on Aurora / Developer Edition
* and Nightly channels and on Firefox 36-39.
[change] Fx43+: removed switch to 'restore the old search ui'
* The 'browser.search.showOneOffButtons' preference got removedfrom
* Fx43 (20150906+) and its switch on CTRs preference window became useless.
[change] Fx43+: removed switch to restore 'the old preferences window'
* The 'browser.preferences.inContent' preference got removed from
* Fx43 (20150906+) and its switch on CTRs preference window became useless.
[change] internal changes to 'activity throbber' option
[change] prefwindow appearance of padlock icon options
[change] prefwindow: moved & relabeled some options (thanks to strel)
[change] internal optimizations (thanks to Toady)
[change] Win10 & Fx40+ & appbutton in titlebar: appbutton appearance
[change] Win10 & Fx40+ & appbutton in titlebar: tweaks for min/max/close
[change] Win8 & Fx40+ & appbutton in titlebar: appbutton size
[change] big icon mode: experimental support for non-default button icons
[change] minor prefwindow tweaks for complete themes
[change] updated classic preset preferences
[change] minor tweaks for some complete themes
[change] code cleanup (thanks to erosman)
Note 1
"Open 'about:preferences' in a window" is an experimental option that simulates a preference window, but internally is a default browser window with all toolbars hidden and the category tabs moved to the top.
This is not a XUL/preference window, so not every XUL feature applies here.
Bugs / restrictions / possible issues:
1. Leaving this preference window open and performing a browser restart will reopen it (like default browser windows are reopened after a restart).
2. It is possible this window is not accurate on every locale or in all HiDPI modes.
3. This windows size can be manually adjusted, but new dimensions do not get saved.
4. It is possible to shrink window size and corrupt its ui. There are no checks to forbid this.
5. Last opened category or tab does not get saved
6. Opening a second prefwindow closes the first one.
7. Keeping the window(s) after restart allows to open more of them,but there is no point in doing this.
Note 2
To the MacOSX 10.10 user who rapidly requests this add-on has to be signed: it is signed!
Add-ons only showed a ".1-signed" string once in May/June 2015 when Mozilla automatically signed them for the first time.
All add-on versions uploaded since then get signed automatically, but do not display a ".1-signed" string.