diff --git a/ChangeLog.adoc b/ChangeLog.adoc
index 273127e13..cf9984a3b 100644
--- a/ChangeLog.adoc
+++ b/ChangeLog.adoc
@@ -8,6 +8,14 @@
 :see-release-notes: If you are upgrading: please see release notes.
 :breaking: pass:quotes[*[breaking]*]
 
+[[v4.3.3]]
+== Version 4.3.3 (under dev)
+
+[[v4.3.3_fixed]]
+=== Fixed
+
+* core, plugins: return "0x0" instead of "(nil)" for pointers formatted in strings
+
 [[v4.3.2]]
 == Version 4.3.2 (2024-06-06)
 
diff --git a/src/core/core-eval.c b/src/core/core-eval.c
index 2317d4ba9..e28d54a36 100644
--- a/src/core/core-eval.c
+++ b/src/core/core-eval.c
@@ -1149,9 +1149,9 @@ eval_hdata_get_value (struct t_hdata *hdata, void *pointer, const char *path,
     int type, debug_id;
     struct t_hashtable *hashtable;
 
-    EVAL_DEBUG_MSG(1, "eval_hdata_get_value(\"%s\", %p, \"%s\")",
+    EVAL_DEBUG_MSG(1, "eval_hdata_get_value(\"%s\", 0x%lx, \"%s\")",
                    (hdata) ? hdata->name : "(null)",
-                   pointer,
+                   (unsigned long)pointer,
                    path);
 
     value = NULL;
@@ -1167,7 +1167,7 @@ eval_hdata_get_value (struct t_hdata *hdata, void *pointer, const char *path,
     /* no path? just return current pointer as string */
     if (!path || !path[0])
     {
-        snprintf (str_value, sizeof (str_value), "%p", pointer);
+        snprintf (str_value, sizeof (str_value), "0x%lx", (unsigned long)pointer);
         value = strdup (str_value);
         goto end;
     }
@@ -1224,7 +1224,8 @@ eval_hdata_get_value (struct t_hdata *hdata, void *pointer, const char *path,
             break;
         case WEECHAT_HDATA_POINTER:
             pointer = hdata_pointer (hdata, pointer, var_name);
-            snprintf (str_value, sizeof (str_value), "%p", pointer);
+            snprintf (str_value, sizeof (str_value),
+                      "0x%lx", (unsigned long)pointer);
             value = strdup (str_value);
             break;
         case WEECHAT_HDATA_TIME:
@@ -1273,7 +1274,7 @@ eval_hdata_get_value (struct t_hdata *hdata, void *pointer, const char *path,
                         case HASHTABLE_POINTER:
                         case HASHTABLE_BUFFER:
                             snprintf (str_value, sizeof (str_value),
-                                      "%p", ptr_value);
+                                      "0x%lx", (unsigned long)ptr_value);
                             value = strdup (str_value);
                             break;
                         case HASHTABLE_TIME:
@@ -1288,7 +1289,8 @@ eval_hdata_get_value (struct t_hdata *hdata, void *pointer, const char *path,
             }
             else
             {
-                snprintf (str_value, sizeof (str_value), "%p", pointer);
+                snprintf (str_value, sizeof (str_value),
+                          "0x%lx", (unsigned long)pointer);
                 value = strdup (str_value);
             }
             break;
@@ -2432,8 +2434,8 @@ eval_replace_regex (const char *string, regex_t *regex, const char *replace,
 
     result = NULL;
 
-    EVAL_DEBUG_MSG(1, "eval_replace_regex(\"%s\", %p, \"%s\")",
-                   string, regex, replace);
+    EVAL_DEBUG_MSG(1, "eval_replace_regex(\"%s\", 0x%lx, \"%s\")",
+                   string, (unsigned long)regex, replace);
 
     if (!string || !regex || !replace)
         goto end;
diff --git a/src/core/core-hashtable.c b/src/core/core-hashtable.c
index 6adbe3eb2..25c8e00ce 100644
--- a/src/core/core-hashtable.c
+++ b/src/core/core-hashtable.c
@@ -559,7 +559,8 @@ hashtable_to_string (enum t_hashtable_type type, const void *value)
             break;
         case HASHTABLE_POINTER:
         case HASHTABLE_BUFFER:
-            snprintf (str_value, sizeof (str_value), "%p", value);
+            snprintf (str_value, sizeof (str_value), "0x%lx",
+                      (unsigned long)value);
             return str_value;
             break;
         case HASHTABLE_TIME:
diff --git a/src/core/core-hashtable.h b/src/core/core-hashtable.h
index b2c8a8fa3..9ba78e1a3 100644
--- a/src/core/core-hashtable.h
+++ b/src/core/core-hashtable.h
@@ -43,7 +43,8 @@ struct t_infolist_item;
 #define HASHTABLE_SET_POINTER(__name, __pointer)                         \
     if (__pointer)                                                       \
     {                                                                    \
-        snprintf (str_value, sizeof (str_value), "%p", __pointer);      \
+        snprintf (str_value, sizeof (str_value),                         \
+                  "0x%lx", (unsigned long)__pointer);                    \
         hashtable_set (hashtable, __name, str_value);                    \
     }                                                                    \
     else                                                                 \
diff --git a/src/core/core-input.c b/src/core/core-input.c
index f3bddfa5b..22696f75d 100644
--- a/src/core/core-input.c
+++ b/src/core/core-input.c
@@ -265,7 +265,7 @@ input_data (struct t_gui_buffer *buffer, const char *data,
     }
 
     /* execute modifier "input_text_for_buffer" */
-    snprintf (str_buffer, sizeof (str_buffer), "%p", buffer);
+    snprintf (str_buffer, sizeof (str_buffer), "0x%lx", (unsigned long)buffer);
     new_data = hook_modifier_exec (NULL,
                                    "input_text_for_buffer",
                                    str_buffer,
diff --git a/src/gui/gui-bar-item.c b/src/gui/gui-bar-item.c
index bfd20720d..88a36d863 100644
--- a/src/gui/gui-bar-item.c
+++ b/src/gui/gui-bar-item.c
@@ -947,7 +947,7 @@ gui_bar_item_input_text_cb (const void *pointer, void *data,
     }
 
     /* for modifiers */
-    snprintf (str_buffer, sizeof (str_buffer), "%p", buffer);
+    snprintf (str_buffer, sizeof (str_buffer), "0x%lx", (unsigned long)buffer);
 
     /* execute modifier with basic string (without cursor tag) */
     ptr_input = NULL;
diff --git a/src/gui/gui-bar.c b/src/gui/gui-bar.c
index e7fc5a5d4..b2688dbaf 100644
--- a/src/gui/gui-bar.c
+++ b/src/gui/gui-bar.c
@@ -434,7 +434,7 @@ gui_bar_check_conditions (struct t_gui_bar *bar,
      */
     snprintf (str_modifier, sizeof (str_modifier),
               "bar_condition_%s", bar->name);
-    snprintf (str_window, sizeof (str_window), "%p", window);
+    snprintf (str_window, sizeof (str_window), "0x%lx", (unsigned long)window);
     str_displayed = hook_modifier_exec (NULL,
                                         str_modifier,
                                         str_window,
diff --git a/src/gui/gui-chat.c b/src/gui/gui-chat.c
index 7f1831d65..ba2204419 100644
--- a/src/gui/gui-chat.c
+++ b/src/gui/gui-chat.c
@@ -677,8 +677,8 @@ gui_chat_printf_datetime_tags_internal (struct t_gui_buffer *buffer,
     if (modifier_data && string)
     {
         snprintf (modifier_data, length_data,
-                  "%p;%s",
-                  buffer,
+                  "0x%lx;%s",
+                  (unsigned long)buffer,
                   (tags) ? tags : "");
         if (display_time)
         {
diff --git a/src/gui/gui-history.c b/src/gui/gui-history.c
index 35eddc7c5..add6c9813 100644
--- a/src/gui/gui-history.c
+++ b/src/gui/gui-history.c
@@ -192,7 +192,7 @@ gui_history_add (struct t_gui_buffer *buffer, const char *string)
 {
     char *string2, str_buffer[128];
 
-    snprintf (str_buffer, sizeof (str_buffer), "%p", buffer);
+    snprintf (str_buffer, sizeof (str_buffer), "0x%lx", (unsigned long)buffer);
     string2 = hook_modifier_exec (NULL, "history_add", str_buffer, string);
 
     /*
diff --git a/src/gui/gui-input.c b/src/gui/gui-input.c
index 442add09d..cce248c4c 100644
--- a/src/gui/gui-input.c
+++ b/src/gui/gui-input.c
@@ -158,7 +158,8 @@ gui_input_text_changed_modifier_and_signal (struct t_gui_buffer *buffer,
             gui_buffer_undo_add (buffer);
 
         /* send modifier, and change input if needed */
-        snprintf (str_buffer, sizeof (str_buffer), "%p", buffer);
+        snprintf (str_buffer, sizeof (str_buffer),
+                  "0x%lx", (unsigned long)buffer);
         new_input = hook_modifier_exec (NULL,
                                         "input_text_content",
                                         str_buffer,
diff --git a/src/gui/gui-nicklist.c b/src/gui/gui-nicklist.c
index 6d7f9e7fd..b79b3a107 100644
--- a/src/gui/gui-nicklist.c
+++ b/src/gui/gui-nicklist.c
@@ -69,8 +69,8 @@ gui_nicklist_send_signal (const char *signal, struct t_gui_buffer *buffer,
         if (str_args)
         {
             snprintf (str_args, length,
-                      "%p,%s",
-                      buffer,
+                      "0x%lx,%s",
+                      (unsigned long)buffer,
                       (arguments) ? arguments : "");
             (void) hook_signal_send (signal,
                                      WEECHAT_HOOK_SIGNAL_STRING, str_args);
diff --git a/src/plugins/buflist/buflist-mouse.c b/src/plugins/buflist/buflist-mouse.c
index 087a618c6..6828e6929 100644
--- a/src/plugins/buflist/buflist-mouse.c
+++ b/src/plugins/buflist/buflist-mouse.c
@@ -155,7 +155,7 @@ end:
     }
 
     /* add pointer and plugin name */
-    snprintf (str_value, sizeof (str_value), "%p", ptr_buffer);
+    snprintf (str_value, sizeof (str_value), "0x%lx", (unsigned long)ptr_buffer);
     weechat_hashtable_set (info, "pointer", str_value);
     weechat_hashtable_set (info, "plugin",
                            weechat_buffer_get_string (ptr_buffer, "plugin"));
diff --git a/src/plugins/fset/fset-mouse.c b/src/plugins/fset/fset-mouse.c
index 795acce10..fb7d61312 100644
--- a/src/plugins/fset/fset-mouse.c
+++ b/src/plugins/fset/fset-mouse.c
@@ -82,7 +82,8 @@ fset_mouse_focus_cb (const void *pointer, void *data, struct t_hashtable *info)
     if (!ptr_fset_option)
         return info;
 
-    snprintf (str_value, sizeof (str_value), "%p", ptr_fset_option);
+    snprintf (str_value, sizeof (str_value),
+              "0x%lx", (unsigned long)ptr_fset_option);
     weechat_hashtable_set (info, "fset_option", str_value);
     snprintf (str_value, sizeof (str_value), "%ld", option_index);
     weechat_hashtable_set (info, "fset_option_index", str_value);
diff --git a/src/plugins/irc/irc-bar-item.c b/src/plugins/irc/irc-bar-item.c
index f32935882..761c7c2d1 100644
--- a/src/plugins/irc/irc-bar-item.c
+++ b/src/plugins/irc/irc-bar-item.c
@@ -661,7 +661,8 @@ irc_bar_item_focus_buffer_nicklist (const void *pointer, void *data,
             ptr_nick = irc_nick_search (ptr_server, ptr_channel, nick);
             if (ptr_nick)
             {
-                snprintf (str_value, sizeof (str_value), "%p", ptr_nick);
+                snprintf (str_value, sizeof (str_value),
+                          "0x%lx", (unsigned long)ptr_nick);
                 weechat_hashtable_set (info, "irc_nick", str_value);
 
                 if (ptr_nick->host)
diff --git a/src/plugins/irc/irc-info.c b/src/plugins/irc/irc-info.c
index f9bb60149..6cbd5b00e 100644
--- a/src/plugins/irc/irc-info.c
+++ b/src/plugins/irc/irc-info.c
@@ -57,7 +57,7 @@ irc_info_create_string_with_pointer (char **string, void *pointer)
         *string = malloc (64);
         if (*string)
         {
-            snprintf (*string, 64, "%p", pointer);
+            snprintf (*string, 64, "0x%lx", (unsigned long)pointer);
         }
     }
 }
diff --git a/src/plugins/irc/irc-typing.c b/src/plugins/irc/irc-typing.c
index 296fc31bc..fcc1cf9eb 100644
--- a/src/plugins/irc/irc-typing.c
+++ b/src/plugins/irc/irc-typing.c
@@ -143,8 +143,8 @@ irc_typing_channel_set_nick (struct t_irc_channel *channel, const char *nick,
     char signal_data[1024];
 
     snprintf (signal_data, sizeof (signal_data),
-              "%p;%s;%s",
-              channel->buffer,
+              "0x%lx;%s;%s",
+              (unsigned long)channel->buffer,
               (state == IRC_CHANNEL_TYPING_STATE_ACTIVE) ? "typing" :
               ((state == IRC_CHANNEL_TYPING_STATE_PAUSED) ? "paused" : "off"),
               nick);
diff --git a/src/plugins/plugin-api-info.c b/src/plugins/plugin-api-info.c
index 4c1606264..3f3c1eb5c 100644
--- a/src/plugins/plugin-api-info.c
+++ b/src/plugins/plugin-api-info.c
@@ -512,7 +512,7 @@ plugin_api_info_buffer_cb (const void *pointer, void *data,
     if (!ptr_buffer)
         return NULL;
 
-    snprintf (value, sizeof (value), "%p", ptr_buffer);
+    snprintf (value, sizeof (value), "0x%lx", (unsigned long)ptr_buffer);
     return strdup (value);
 }
 
diff --git a/src/plugins/plugin-script.c b/src/plugins/plugin-script.c
index 809b9cd67..f6408a9a5 100644
--- a/src/plugins/plugin-script.c
+++ b/src/plugins/plugin-script.c
@@ -379,7 +379,7 @@ plugin_script_ptr2str (void *pointer)
         return str_pointer[index_pointer];
 
     snprintf (str_pointer[index_pointer], sizeof (str_pointer[index_pointer]),
-              "%p", pointer);
+              "0x%lx", (unsigned long)pointer);
 
     return str_pointer[index_pointer];
 }
diff --git a/src/plugins/relay/irc/relay-irc.c b/src/plugins/relay/irc/relay-irc.c
index 79847cd5a..9fb08cb66 100644
--- a/src/plugins/relay/irc/relay-irc.c
+++ b/src/plugins/relay/irc/relay-irc.c
@@ -215,7 +215,8 @@ relay_irc_sendf (struct t_relay_client *client, const char *format, ...)
     hashtable_in = NULL;
     hashtable_out = NULL;
 
-    snprintf (modifier_data, sizeof (modifier_data), "%p", client);
+    snprintf (modifier_data, sizeof (modifier_data),
+              "0x%lx", (unsigned long)client);
     new_msg1 = weechat_hook_modifier_exec ("relay_client_irc_out1",
                                            modifier_data, vbuffer);
 
@@ -1641,7 +1642,8 @@ relay_irc_recv (struct t_relay_client *client, const char *data)
                         data);
     }
 
-    snprintf (modifier_data, sizeof (modifier_data), "%p", client);
+    snprintf (modifier_data, sizeof (modifier_data),
+              "0x%lx", (unsigned long)client);
     new_data = weechat_hook_modifier_exec ("relay_client_irc_in",
                                            modifier_data, data);
 
diff --git a/src/plugins/relay/weechat/relay-weechat-protocol.c b/src/plugins/relay/weechat/relay-weechat-protocol.c
index 5a9d85351..4264f13ba 100644
--- a/src/plugins/relay/weechat/relay-weechat-protocol.c
+++ b/src/plugins/relay/weechat/relay-weechat-protocol.c
@@ -872,7 +872,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name,short_name,"
                                              "nicklist,title,local_variables,"
@@ -896,7 +897,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name,type");
                 relay_weechat_msg_send (ptr_client, msg);
@@ -918,7 +920,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name,"
                                              "prev_buffer,next_buffer");
@@ -942,7 +945,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name,"
                                              "prev_buffer,next_buffer");
@@ -966,7 +970,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name,"
                                              "prev_buffer,next_buffer");
@@ -1010,7 +1015,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name,short_name,"
                                              "local_variables");
@@ -1033,7 +1039,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name,title");
                 relay_weechat_msg_send (ptr_client, msg);
@@ -1055,7 +1062,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name,local_variables");
                 relay_weechat_msg_send (ptr_client, msg);
@@ -1076,7 +1084,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name");
                 relay_weechat_msg_send (ptr_client, msg);
@@ -1107,8 +1116,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             if (msg)
             {
                 snprintf (cmd_hdata, sizeof (cmd_hdata),
-                          "line_data:%p",
-                          ptr_line_data);
+                          "line_data:0x%lx",
+                          (unsigned long)ptr_line_data);
                 relay_weechat_msg_add_hdata (
                     msg, cmd_hdata,
                     "buffer,date,date_usec,date_printed,date_usec_printed,"
@@ -1133,7 +1142,8 @@ relay_weechat_protocol_signal_buffer_cb (const void *pointer, void *data,
             msg = relay_weechat_msg_new (str_signal);
             if (msg)
             {
-                snprintf (cmd_hdata, sizeof (cmd_hdata), "buffer:%p", ptr_buffer);
+                snprintf (cmd_hdata, sizeof (cmd_hdata),
+                          "buffer:0x%lx", (unsigned long)ptr_buffer);
                 relay_weechat_msg_add_hdata (msg, cmd_hdata,
                                              "id,number,full_name");
                 relay_weechat_msg_send (ptr_client, msg);
diff --git a/src/plugins/trigger/trigger-callback.c b/src/plugins/trigger/trigger-callback.c
index 46daf56e6..fbbaee5f7 100644
--- a/src/plugins/trigger/trigger-callback.c
+++ b/src/plugins/trigger/trigger-callback.c
@@ -733,7 +733,10 @@ trigger_callback_signal_cb (const void *pointer, void *data,
     {
         str_data[0] = '\0';
         if (signal_data)
-            snprintf (str_data, sizeof (str_data), "%p", signal_data);
+        {
+            snprintf (str_data, sizeof (str_data),
+                      "0x%lx", (unsigned long)signal_data);
+        }
         ptr_signal_data = str_data;
     }
     weechat_hashtable_set (ctx.extra_vars, "tg_signal_data", ptr_signal_data);