deleted file mode 100644
--- a/browser/chrome/browser-region/region.properties
+++ /dev/null
@@ -1,25 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-# increment this number when anything gets changed in the list below. This will
-# cause Firefox to re-read these prefs and inject any new handlers into the
-# profile database. Note that "new" is defined as "has a different URL"; this
-# means that it's not possible to update the name of existing handler, so
-# don't make any spelling errors here.
-gecko.handlerService.defaultHandlersVersion=4
-
-# The default set of protocol handlers for mailto:
-gecko.handlerService.schemes.mailto.0.name=Yahoo! Mail
-gecko.handlerService.schemes.mailto.0.uriTemplate=https://compose.mail.yahoo.com/?To=%s
-gecko.handlerService.schemes.mailto.1.name=Gmail
-gecko.handlerService.schemes.mailto.1.uriTemplate=https://mail.google.com/mail/?extsrc=mailto&url=%s
-
-# The default set of protocol handlers for irc:
-gecko.handlerService.schemes.irc.0.name=Mibbit
-gecko.handlerService.schemes.irc.0.uriTemplate=https://www.mibbit.com/?url=%s
-
-# The default set of protocol handlers for ircs:
-gecko.handlerService.schemes.ircs.0.name=Mibbit
-gecko.handlerService.schemes.ircs.0.uriTemplate=https://www.mibbit.com/?url=%s
-
deleted file mode 100644
--- a/browser/profile/bookmarks.inc
+++ /dev/null
@@ -1,72 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-#filter emptyLines
-
-# LOCALIZATION NOTE: The 'en-US' strings in the URLs will be replaced with
-# your locale code, and link to your translated pages as soon as they're
-# live.
-
-#define bookmarks_title ចំណាំ
-#define bookmarks_heading ចំណាំ
-
-#define bookmarks_toolbarfolder ថតរបារឧបករណ៍ចំណាំ
-#define bookmarks_toolbarfolder_description បន្ថែមចំណាំទៅកាន់ថតនេះ ដើម្បីឲ្យឃើញពួកវាបង្ហាញនៅលើរបារឧបករណ៍ចំណាំ
-
-# LOCALIZATION NOTE (getting_started):
-# link title for https://www.mozilla.org/en-US/firefox/central/
-#define getting_started ចាប់ផ្ដើម
-
-# LOCALIZATION NOTE (firefox_heading):
-# Firefox links folder name
-#define firefox_heading Mozilla Firefox
-
-# LOCALIZATION NOTE (firefox_help):
-# link title for https://www.mozilla.org/en-US/firefox/help/
-#define firefox_help ជំនួយ និងការបង្ហាត់បង្រៀន
-
-# LOCALIZATION NOTE (firefox_customize):
-# link title for https://www.mozilla.org/en-US/firefox/customize/
-#define firefox_customize ប្ដូរ Firefox តាមបំណង
-
-# LOCALIZATION NOTE (firefox_community):
-# link title for https://www.mozilla.org/en-US/contribute/
-#define firefox_community ចូលរួម
-
-# LOCALIZATION NOTE (firefox_about):
-# link title for https://www.mozilla.org/en-US/about/
-#define firefox_about អំពីយើង
-
-# LOCALIZATION NOTE (nightly_heading):
-# Firefox Nightly links folder name
-#define nightly_heading ធនធាន Firefox Nightly
-
-# LOCALIZATION NOTE (nightly_blog):
-# Nightly builds only, link title for https://blog.nightly.mozilla.org/
-#define nightly_blog កំណត់ហេតុបណ្ដាញ Firefox Nightly
-
-# LOCALIZATION NOTE (bugzilla):
-# Nightly builds only, link title for https://bugzilla.mozilla.org/
-#define bugzilla ឧបករណ៍តាមដានកំហុស Mozilla
-
-# LOCALIZATION NOTE (mdn):
-# Nightly builds only, link title for https://developer.mozilla.org/
-#define mdn បណ្ដាញអ្នកអភិវឌ្ឍ Mozilla
-
-# LOCALIZATION NOTE (nightly_tester_tools):
-# Nightly builds only, link title for https://addons.mozilla.org/en-US/firefox/addon/nightly-tester-tools/
-#define nightly_tester_tools ឧបករណ៍សាកល្បង Nightly
-
-# LOCALIZATION NOTE (crashes):
-# Nightly builds only, link title for about:crashes
-#define crashes ការគាំងទាំងអស់របស់អ្នក
-
-# LOCALIZATION NOTE (irc):
-# Nightly builds only, link title for ircs://irc.mozilla.org/nightly
-#define irc ពិភាក្សា Nightly តាម IRC
-
-# LOCALIZATION NOTE (planet):
-# Nightly builds only, link title for https://planet.mozilla.org/
-#define planet Planet Mozilla
-
-#unfilter emptyLines
deleted file mode 100644
--- a/devtools/startup/aboutDevTools.ftl
+++ /dev/null
@@ -1,21 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-head-title = អំពីឧបករណ៍អ្នកអភិវឌ្ឍ
-enable-title = បើកឧបករណ៍អ្នកអភិវឌ្ឍ Firefox
-enable-inspect-element-title = បើកដំណើរការឧបករណ៍អ្នកអភិវឌ្ឍន៍ Firefox ដើម្បីប្រើប្រាស់ធាតុអធិការកិច្ច
-enable-inspect-element-message = ពិនិត្យនិងកែសម្រួល HTML និង CSS ជាមួយអធិការឧបករណ៍អ្នកអភិវឌ្ឍ។
-enable-close-button = បិទផ្ទាំងនេះ
-
-newsletter-email-placeholder =
- .placeholder = អ៊ីមែល
-newsletter-subscribe-button = ជាវ
-newsletter-thanks-title = អរគុណ!
-
-footer-learn-more-link = ស្វែងយល់បន្ថែម
-
-features-learn-more = ស្វែងយល់បន្ថែម
-features-storage-title = ទំហំផ្ទុក
-features-performance-title = ប្រតិបត្តិការ
-features-memory-title = អង្គចងចាំ