diff --git a/windows_prebuilt/Firefox/App/Firefox/AccessibleMarshal.dll b/windows_prebuilt/Firefox/App/Firefox/AccessibleMarshal.dll
index 3081407..607a510 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/AccessibleMarshal.dll and b/windows_prebuilt/Firefox/App/Firefox/AccessibleMarshal.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/IA2Marshal.dll b/windows_prebuilt/Firefox/App/Firefox/IA2Marshal.dll
index 39380d8..2277203 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/IA2Marshal.dll and b/windows_prebuilt/Firefox/App/Firefox/IA2Marshal.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/application.ini b/windows_prebuilt/Firefox/App/Firefox/application.ini
index fa98588..2d0c1c2 100644
--- a/windows_prebuilt/Firefox/App/Firefox/application.ini
+++ b/windows_prebuilt/Firefox/App/Firefox/application.ini
@@ -5,15 +5,15 @@
 Vendor=Mozilla
 Name=Firefox
 RemotingName=firefox
-Version=52.1.2
-BuildID=20170517122419
+Version=52.2.1
+BuildID=20170627155318
 SourceRepository=https://hg.mozilla.org/releases/mozilla-esr52
-SourceStamp=0dc7c28f20648d597b11b60e90be9a15687656aa
+SourceStamp=512efd480dac58acf9eebd5f25a76b32917ab56d
 ID={ec8030f7-c20a-464f-9b0e-13a3a9e97384}
 
 [Gecko]
-MinVersion=52.1.2
-MaxVersion=52.1.2
+MinVersion=52.2.1
+MaxVersion=52.2.1
 
 [XRE]
 EnableProfileMigrator=1
diff --git a/windows_prebuilt/Firefox/App/Firefox/breakpadinjector.dll b/windows_prebuilt/Firefox/App/Firefox/breakpadinjector.dll
index 157d470..f319421 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/breakpadinjector.dll and b/windows_prebuilt/Firefox/App/Firefox/breakpadinjector.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/browser/extensions/{73a6fe31-595d-460b-a920-fcc0f8843232}.xpi b/windows_prebuilt/Firefox/App/Firefox/browser/extensions/{73a6fe31-595d-460b-a920-fcc0f8843232}.xpi
index 3cc7e97..87bff30 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/browser/extensions/{73a6fe31-595d-460b-a920-fcc0f8843232}.xpi and b/windows_prebuilt/Firefox/App/Firefox/browser/extensions/{73a6fe31-595d-460b-a920-fcc0f8843232}.xpi differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi b/windows_prebuilt/Firefox/App/Firefox/browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi
index ea6da6c..d0a3ed6 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi and b/windows_prebuilt/Firefox/App/Firefox/browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/browser/features/aushelper@mozilla.org.xpi b/windows_prebuilt/Firefox/App/Firefox/browser/features/aushelper@mozilla.org.xpi
index ba1249d..1cb8d70 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/browser/features/aushelper@mozilla.org.xpi and b/windows_prebuilt/Firefox/App/Firefox/browser/features/aushelper@mozilla.org.xpi differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/browser/features/e10srollout@mozilla.org.xpi b/windows_prebuilt/Firefox/App/Firefox/browser/features/e10srollout@mozilla.org.xpi
index 0d9a96e..1908bc2 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/browser/features/e10srollout@mozilla.org.xpi and b/windows_prebuilt/Firefox/App/Firefox/browser/features/e10srollout@mozilla.org.xpi differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/browser/features/firefox@getpocket.com.xpi b/windows_prebuilt/Firefox/App/Firefox/browser/features/firefox@getpocket.com.xpi
index 7d1650b..91e7c8e 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/browser/features/firefox@getpocket.com.xpi and b/windows_prebuilt/Firefox/App/Firefox/browser/features/firefox@getpocket.com.xpi differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/browser/features/webcompat@mozilla.org.xpi b/windows_prebuilt/Firefox/App/Firefox/browser/features/webcompat@mozilla.org.xpi
index 85f3594..d503c16 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/browser/features/webcompat@mozilla.org.xpi and b/windows_prebuilt/Firefox/App/Firefox/browser/features/webcompat@mozilla.org.xpi differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/browser/omni.ja b/windows_prebuilt/Firefox/App/Firefox/browser/omni.ja
index f9d9eac..00451f6 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/browser/omni.ja and b/windows_prebuilt/Firefox/App/Firefox/browser/omni.ja differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/firefox.exe b/windows_prebuilt/Firefox/App/Firefox/firefox.exe
index 0ca86fd..43c70a5 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/firefox.exe and b/windows_prebuilt/Firefox/App/Firefox/firefox.exe differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/freebl3.chk b/windows_prebuilt/Firefox/App/Firefox/freebl3.chk
index 18d22e0..90a3093 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/freebl3.chk and b/windows_prebuilt/Firefox/App/Firefox/freebl3.chk differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/freebl3.dll b/windows_prebuilt/Firefox/App/Firefox/freebl3.dll
index 49de981..f92d640 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/freebl3.dll and b/windows_prebuilt/Firefox/App/Firefox/freebl3.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/gmp-clearkey/0.1/clearkey.dll b/windows_prebuilt/Firefox/App/Firefox/gmp-clearkey/0.1/clearkey.dll
index 07969a4..e75dc17 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/gmp-clearkey/0.1/clearkey.dll and b/windows_prebuilt/Firefox/App/Firefox/gmp-clearkey/0.1/clearkey.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/lgpllibs.dll b/windows_prebuilt/Firefox/App/Firefox/lgpllibs.dll
index f0fa7b6..86b240a 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/lgpllibs.dll and b/windows_prebuilt/Firefox/App/Firefox/lgpllibs.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/libEGL.dll b/windows_prebuilt/Firefox/App/Firefox/libEGL.dll
index 96fd956..7a69ca7 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/libEGL.dll and b/windows_prebuilt/Firefox/App/Firefox/libEGL.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/libGLESv2.dll b/windows_prebuilt/Firefox/App/Firefox/libGLESv2.dll
index c77ef3c..0c0c6f2 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/libGLESv2.dll and b/windows_prebuilt/Firefox/App/Firefox/libGLESv2.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/minidump-analyzer.exe b/windows_prebuilt/Firefox/App/Firefox/minidump-analyzer.exe
index 3eb1187..b4e6b2b 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/minidump-analyzer.exe and b/windows_prebuilt/Firefox/App/Firefox/minidump-analyzer.exe differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/mozavcodec.dll b/windows_prebuilt/Firefox/App/Firefox/mozavcodec.dll
index a97c4fa..9b9701a 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/mozavcodec.dll and b/windows_prebuilt/Firefox/App/Firefox/mozavcodec.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/mozavutil.dll b/windows_prebuilt/Firefox/App/Firefox/mozavutil.dll
index 0ee02f8..41eed1f 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/mozavutil.dll and b/windows_prebuilt/Firefox/App/Firefox/mozavutil.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/mozglue.dll b/windows_prebuilt/Firefox/App/Firefox/mozglue.dll
index cb1a2df..457923d 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/mozglue.dll and b/windows_prebuilt/Firefox/App/Firefox/mozglue.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/nss3.dll b/windows_prebuilt/Firefox/App/Firefox/nss3.dll
index 65536d6..72064e5 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/nss3.dll and b/windows_prebuilt/Firefox/App/Firefox/nss3.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/nssckbi.dll b/windows_prebuilt/Firefox/App/Firefox/nssckbi.dll
index 51846a5..bf7ee67 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/nssckbi.dll and b/windows_prebuilt/Firefox/App/Firefox/nssckbi.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/nssdbm3.chk b/windows_prebuilt/Firefox/App/Firefox/nssdbm3.chk
index a86efe5..acc2e5b 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/nssdbm3.chk and b/windows_prebuilt/Firefox/App/Firefox/nssdbm3.chk differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/nssdbm3.dll b/windows_prebuilt/Firefox/App/Firefox/nssdbm3.dll
index fdcd03f..84fe922 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/nssdbm3.dll and b/windows_prebuilt/Firefox/App/Firefox/nssdbm3.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/omni.ja b/windows_prebuilt/Firefox/App/Firefox/omni.ja
index fc7bbed..58262cc 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/omni.ja and b/windows_prebuilt/Firefox/App/Firefox/omni.ja differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/platform.ini b/windows_prebuilt/Firefox/App/Firefox/platform.ini
index 851862f..b014010 100644
--- a/windows_prebuilt/Firefox/App/Firefox/platform.ini
+++ b/windows_prebuilt/Firefox/App/Firefox/platform.ini
@@ -1,5 +1,5 @@
 [Build]
-BuildID=20170517122419
-Milestone=52.1.2
+BuildID=20170627155318
+Milestone=52.2.1
 SourceRepository=https://hg.mozilla.org/releases/mozilla-esr52
-SourceStamp=0dc7c28f20648d597b11b60e90be9a15687656aa
+SourceStamp=512efd480dac58acf9eebd5f25a76b32917ab56d
diff --git a/windows_prebuilt/Firefox/App/Firefox/plugin-container.exe b/windows_prebuilt/Firefox/App/Firefox/plugin-container.exe
index c00fb45..855e073 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/plugin-container.exe and b/windows_prebuilt/Firefox/App/Firefox/plugin-container.exe differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/plugin-hang-ui.exe b/windows_prebuilt/Firefox/App/Firefox/plugin-hang-ui.exe
index 9ce9276..a8288b0 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/plugin-hang-ui.exe and b/windows_prebuilt/Firefox/App/Firefox/plugin-hang-ui.exe differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/qipcap.dll b/windows_prebuilt/Firefox/App/Firefox/qipcap.dll
index 6a59fa8..1eeff87 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/qipcap.dll and b/windows_prebuilt/Firefox/App/Firefox/qipcap.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/softokn3.chk b/windows_prebuilt/Firefox/App/Firefox/softokn3.chk
index a0545c6..78d366b 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/softokn3.chk and b/windows_prebuilt/Firefox/App/Firefox/softokn3.chk differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/softokn3.dll b/windows_prebuilt/Firefox/App/Firefox/softokn3.dll
index 6329c68..afdca10 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/softokn3.dll and b/windows_prebuilt/Firefox/App/Firefox/softokn3.dll differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/voucher.bin b/windows_prebuilt/Firefox/App/Firefox/voucher.bin
index 44c77e0..6f19352 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/voucher.bin and b/windows_prebuilt/Firefox/App/Firefox/voucher.bin differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/wow_helper.exe b/windows_prebuilt/Firefox/App/Firefox/wow_helper.exe
index accb308..05ab1c6 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/wow_helper.exe and b/windows_prebuilt/Firefox/App/Firefox/wow_helper.exe differ
diff --git a/windows_prebuilt/Firefox/App/Firefox/xul.dll b/windows_prebuilt/Firefox/App/Firefox/xul.dll
index bd9b26b..f407ae8 100644
Binary files a/windows_prebuilt/Firefox/App/Firefox/xul.dll and b/windows_prebuilt/Firefox/App/Firefox/xul.dll differ
diff --git a/windows_prebuilt/StartI2PdBrowser.exe b/windows_prebuilt/StartI2PdBrowser.exe
index 0ad0ef6..8b8ada7 100644
Binary files a/windows_prebuilt/StartI2PdBrowser.exe and b/windows_prebuilt/StartI2PdBrowser.exe differ
diff --git a/windows_prebuilt/build/7zsd_LZMA2_i2pdbrowser_1.2.3.sfx b/windows_prebuilt/build/7zsd_LZMA2_i2pdbrowser_1.2.4.sfx
similarity index 99%
rename from windows_prebuilt/build/7zsd_LZMA2_i2pdbrowser_1.2.3.sfx
rename to windows_prebuilt/build/7zsd_LZMA2_i2pdbrowser_1.2.4.sfx
index 1054a79..ecd1788 100644
Binary files a/windows_prebuilt/build/7zsd_LZMA2_i2pdbrowser_1.2.3.sfx and b/windows_prebuilt/build/7zsd_LZMA2_i2pdbrowser_1.2.4.sfx differ
diff --git a/windows_prebuilt/build/build_7z.bat b/windows_prebuilt/build/build_7z.bat
index 97af9a5..be01d11 100644
--- a/windows_prebuilt/build/build_7z.bat
+++ b/windows_prebuilt/build/build_7z.bat
@@ -6,7 +6,7 @@ REM See full license text in LICENSE file at top of project tree
 
 echo Создаем 7z архив с набором...
 REM На выходе получаем 7z архив, в котором будут лежать папки Firefox, I2Pd и StartI2PdBrowser.bat из папки src уровнем выше.
-7z a -t7z -m0=lzma2 -mx=9 -aoa -mfb=273 -md=512m -ms=on I2PdBrowserPortable_1.2.3.7z ..\Firefox ..\I2Pd ..\src\StartI2PdBrowser.bat
+7z a -t7z -m0=lzma2 -mx=9 -aoa -mfb=273 -md=512m -ms=on I2PdBrowserPortable_1.2.4.7z ..\Firefox ..\I2Pd ..\src\StartI2PdBrowser.bat
 
 echo Готово!
 pause
\ No newline at end of file
diff --git a/windows_prebuilt/build/build_exe.bat b/windows_prebuilt/build/build_exe.bat
index b5307a0..9a69cf2 100644
--- a/windows_prebuilt/build/build_exe.bat
+++ b/windows_prebuilt/build/build_exe.bat
@@ -10,7 +10,7 @@ REM 
 
 echo Создаем 7z SFX - самораспаковывающийся архив...
 REM На выходе получаем самораспаковывающийся архив, архив после этого удаляем.
-copy /b 7zsd_LZMA2_i2pdbrowser_1.2.3.sfx + config.txt + I2PdBrowserPortable.7z I2PdBrowserPortable_1.2.3.exe >> nul
+copy /b 7zsd_LZMA2_i2pdbrowser_1.2.4.sfx + config.txt + I2PdBrowserPortable.7z I2PdBrowserPortable_1.2.4.exe >> nul
 del I2PdBrowserPortable.7z >> nul
 
 echo Готово!
diff --git a/windows_prebuilt/src/StartI2PdBrowser.bat b/windows_prebuilt/src/StartI2PdBrowser.bat
index 9ac1bb1..349b461 100644
--- a/windows_prebuilt/src/StartI2PdBrowser.bat
+++ b/windows_prebuilt/src/StartI2PdBrowser.bat
@@ -9,7 +9,7 @@ REM BFCPEEMBEDDELETE=1
 REM BFCPEADMINEXE=0
 REM BFCPEINVISEXE=0
 REM BFCPEVERINCLUDE=1
-REM BFCPEVERVERSION=1.2.3.0
+REM BFCPEVERVERSION=1.2.4.0
 REM BFCPEVERPRODUCT=I2Pd Browser Portable
 REM BFCPEVERDESC=I2Pd Browser
 REM BFCPEVERCOMPANY=PurpleI2P