diff --git a/libravatar/lang/pl/messages.po b/libravatar/lang/pl/messages.po
new file mode 100644
index 000000000..87bfa1fd9
--- /dev/null
+++ b/libravatar/lang/pl/messages.po
@@ -0,0 +1,84 @@
+# ADDON libravatar
+# Copyright (C)
+# This file is distributed under the same license as the Friendica libravatar addon package.
+# 
+# 
+# Translators:
+# Waldemar Stoczkowski <waldemar.stoczkowski@gmail.com>, 2018
+msgid ""
+msgstr ""
+"Project-Id-Version: friendica\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-02-27 05:01-0500\n"
+"PO-Revision-Date: 2018-03-31 20:28+0000\n"
+"Last-Translator: Waldemar Stoczkowski <waldemar.stoczkowski@gmail.com>\n"
+"Language-Team: Polish (http://www.transifex.com/Friendica/friendica/language/pl/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: pl\n"
+"Plural-Forms: nplurals=4; plural=(n==1 ? 0 : (n%10>=2 && n%10<=4) && (n%100<12 || n%100>14) ? 1 : n!=1 && (n%10>=0 && n%10<=1) || (n%10>=5 && n%10<=9) || (n%100>=12 && n%100<=14) ? 2 : 3);\n"
+
+#: libravatar.php:14
+msgid "Could NOT install Libravatar successfully.<br>It requires PHP >= 5.3"
+msgstr "Nie można zainstalować Libravatar pomyślnie. <br>Wymaga PHP> = 5.3"
+
+#: libravatar.php:73
+msgid "generic profile image"
+msgstr "ogólny obraz profilu"
+
+#: libravatar.php:74
+msgid "random geometric pattern"
+msgstr "losowy wzór geometryczny"
+
+#: libravatar.php:75
+msgid "monster face"
+msgstr "twarz potwora"
+
+#: libravatar.php:76
+msgid "computer generated face"
+msgstr "wygenerowane komputerowo twarz"
+
+#: libravatar.php:77
+msgid "retro arcade style face"
+msgstr "twarz w stylu retro arcade"
+
+#: libravatar.php:82
+msgid "Warning"
+msgstr "Ostrzeżenie"
+
+#: libravatar.php:83
+#, php-format
+msgid "Your PHP version %s is lower than the required PHP >= 5.3."
+msgstr "Twoja wersja PHP %s jest niższa niż wymagany PHP> = 5.3."
+
+#: libravatar.php:84
+msgid "This addon is not functional on your server."
+msgstr "Ten dodatek nie działa na twoim serwerze."
+
+#: libravatar.php:93
+msgid "Information"
+msgstr "Informacja"
+
+#: libravatar.php:93
+msgid ""
+"Gravatar addon is installed. Please disable the Gravatar addon.<br>The "
+"Libravatar addon will fall back to Gravatar if nothing was found at "
+"Libravatar."
+msgstr "Dodatek Gravatar jest zainstalowany. Wyłącz dodatek Gravatar. Dodatek Libravatar powróci do Gravatar, jeśli w Libravatar nie zostanie znaleziony żaden przedmiot."
+
+#: libravatar.php:99
+msgid "Submit"
+msgstr "Wyślij"
+
+#: libravatar.php:100
+msgid "Default avatar image"
+msgstr "Domyślny obraz awatara"
+
+#: libravatar.php:100
+msgid "Select default avatar image if none was found. See README"
+msgstr "Wybierz domyślny obraz awatara, jeśli nie został znaleziony. Zobacz README"
+
+#: libravatar.php:112
+msgid "Libravatar settings updated."
+msgstr ""
diff --git a/libravatar/lang/pl/strings.php b/libravatar/lang/pl/strings.php
index b9a780c6e..7923499fc 100644
--- a/libravatar/lang/pl/strings.php
+++ b/libravatar/lang/pl/strings.php
@@ -1,17 +1,22 @@
-<?php
-
-$a->strings["Could NOT install Libravatar successfully.<br>It requires PHP >= 5.3"] = "";
-$a->strings["generic profile image"] = "generuj obraz profilowy";
-$a->strings["random geometric pattern"] = "przypadkowy wzorzec geometryczny";
-$a->strings["monster face"] = "monster face";
-$a->strings["computer generated face"] = "";
-$a->strings["retro arcade style face"] = "";
-$a->strings["Warning"] = "Ostrzeżenie";
-$a->strings["Your PHP version %s is lower than the required PHP >= 5.3."] = "";
-$a->strings["This addon is not functional on your server."] = "";
-$a->strings["Information"] = "";
-$a->strings["Gravatar addon is installed. Please disable the Gravatar addon.<br>The Libravatar addon will fall back to Gravatar if nothing was found at Libravatar."] = "";
-$a->strings["Submit"] = "Potwierdź";
-$a->strings["Default avatar image"] = "Domyślny awatar";
-$a->strings["Select default avatar image if none was found. See README"] = "";
-$a->strings["Libravatar settings updated."] = "";
+<?php
+
+if(! function_exists("string_plural_select_pl")) {
+function string_plural_select_pl($n){
+	return ($n==1 ? 0 : ($n%10>=2 && $n%10<=4) && ($n%100<12 || $n%100>14) ? 1 : $n!=1 && ($n%10>=0 && $n%10<=1) || ($n%10>=5 && $n%10<=9) || ($n%100>=12 && $n%100<=14) ? 2 : 3);;
+}}
+;
+$a->strings["Could NOT install Libravatar successfully.<br>It requires PHP >= 5.3"] = "Nie można zainstalować Libravatar pomyślnie. <br>Wymaga PHP> = 5.3";
+$a->strings["generic profile image"] = "ogólny obraz profilu";
+$a->strings["random geometric pattern"] = "losowy wzór geometryczny";
+$a->strings["monster face"] = "twarz potwora";
+$a->strings["computer generated face"] = "wygenerowane komputerowo twarz";
+$a->strings["retro arcade style face"] = "twarz w stylu retro arcade";
+$a->strings["Warning"] = "Ostrzeżenie";
+$a->strings["Your PHP version %s is lower than the required PHP >= 5.3."] = "Twoja wersja PHP %s jest niższa niż wymagany PHP> = 5.3.";
+$a->strings["This addon is not functional on your server."] = "Ten dodatek nie działa na twoim serwerze.";
+$a->strings["Information"] = "Informacja";
+$a->strings["Gravatar addon is installed. Please disable the Gravatar addon.<br>The Libravatar addon will fall back to Gravatar if nothing was found at Libravatar."] = "Dodatek Gravatar jest zainstalowany. Wyłącz dodatek Gravatar. Dodatek Libravatar powróci do Gravatar, jeśli w Libravatar nie zostanie znaleziony żaden przedmiot.";
+$a->strings["Submit"] = "Wyślij";
+$a->strings["Default avatar image"] = "Domyślny obraz awatara";
+$a->strings["Select default avatar image if none was found. See README"] = "Wybierz domyślny obraz awatara, jeśli nie został znaleziony. Zobacz README";
+$a->strings["Libravatar settings updated."] = "";