diff --git a/Dalamud/Interface/Internal/Windows/Settings/Widgets/DevPluginsSettingsEntry.cs b/Dalamud/Interface/Internal/Windows/Settings/Widgets/DevPluginsSettingsEntry.cs
index 1973a305e..4e69dcb1a 100644
--- a/Dalamud/Interface/Internal/Windows/Settings/Widgets/DevPluginsSettingsEntry.cs
+++ b/Dalamud/Interface/Internal/Windows/Settings/Widgets/DevPluginsSettingsEntry.cs
@@ -1,6 +1,7 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
+using System.IO;
 using System.Linq;
 using System.Numerics;
 using System.Threading.Tasks;
@@ -55,13 +56,14 @@ public class DevPluginsSettingsEntry : SettingsEntry
 
     public override void Draw()
     {
-        ImGui.Text(this.Name);
+        using var id = ImRaii.PushId("devPluginLocation");
+        ImGui.TextUnformatted(this.Name);
         if (this.devPluginLocationsChanged)
         {
             using (ImRaii.PushColor(ImGuiCol.Text, ImGuiColors.HealerGreen))
             {
                 ImGui.SameLine();
-                ImGui.Text(Loc.Localize("DalamudSettingsChanged", "(Changed)"));
+                ImGui.TextUnformatted(Loc.Localize("DalamudSettingsChanged", "(Changed)"));
             }
         }
 
@@ -77,13 +79,13 @@ public class DevPluginsSettingsEntry : SettingsEntry
 
         ImGui.Separator();
 
-        ImGui.Text("#");
+        ImGui.TextUnformatted("#");
         ImGui.NextColumn();
-        ImGui.Text("Path");
+        ImGui.TextUnformatted("Path");
         ImGui.NextColumn();
-        ImGui.Text("Enabled");
+        ImGui.TextUnformatted("Enabled");
         ImGui.NextColumn();
-        ImGui.Text(string.Empty);
+        ImGui.TextUnformatted(string.Empty);
         ImGui.NextColumn();
 
         ImGui.Separator();
@@ -95,10 +97,10 @@ public class DevPluginsSettingsEntry : SettingsEntry
         {
             var isEnabled = devPluginLocationSetting.IsEnabled;
 
-            ImGui.PushID($"devPluginLocation_{devPluginLocationSetting.Path}");
+            id.Push(devPluginLocationSetting.Path);
 
             ImGui.SetCursorPosX(ImGui.GetCursorPosX() + (ImGui.GetColumnWidth() / 2) - 8 - (ImGui.CalcTextSize(locNumber.ToString()).X / 2));
-            ImGui.Text(locNumber.ToString());
+            ImGui.TextUnformatted(locNumber.ToString());
             ImGui.NextColumn();
 
             ImGui.SetNextItemWidth(-1);
@@ -115,6 +117,11 @@ public class DevPluginsSettingsEntry : SettingsEntry
                     this.devPluginLocationAddError = Loc.Localize("DalamudDevPluginLocationExists", "Location already exists.");
                     Task.Delay(5000).ContinueWith(t => this.devPluginLocationAddError = string.Empty);
                 }
+                else if (!ValidDevPluginPath(path))
+                {
+                    this.devPluginLocationAddError = Loc.Localize("DalamudDevPluginInvalid", "The entered value is not a valid path to a potential Dev Plugin.\nDid you mean to enter it as a custom plugin repository in the fields below instead?");
+                    Task.Delay(5000).ContinueWith(t => this.devPluginLocationAddError = string.Empty);
+                }
                 else
                 {
                     devPluginLocationSetting.Path = path;
@@ -133,7 +140,7 @@ public class DevPluginsSettingsEntry : SettingsEntry
                 locationToRemove = devPluginLocationSetting;
             }
 
-            ImGui.PopID();
+            id.Pop();
 
             ImGui.NextColumn();
             ImGui.Separator();
@@ -150,7 +157,7 @@ public class DevPluginsSettingsEntry : SettingsEntry
         }
 
         ImGui.SetCursorPosX(ImGui.GetCursorPosX() + (ImGui.GetColumnWidth() / 2) - 8 - (ImGui.CalcTextSize(locNumber.ToString()).X / 2));
-        ImGui.Text(locNumber.ToString());
+        ImGui.TextUnformatted(locNumber.ToString());
         ImGui.NextColumn();
         ImGui.SetNextItemWidth(-1);
         ImGui.InputText("##devPluginLocationInput", ref this.devPluginTempLocation, 300);
@@ -164,6 +171,11 @@ public class DevPluginsSettingsEntry : SettingsEntry
                 this.devPluginLocationAddError = Loc.Localize("DalamudDevPluginLocationExists", "Location already exists.");
                 Task.Delay(5000).ContinueWith(t => this.devPluginLocationAddError = string.Empty);
             }
+            else if (!ValidDevPluginPath(this.devPluginTempLocation))
+            {
+                this.devPluginLocationAddError = Loc.Localize("DalamudDevPluginInvalid", "The entered value is not a valid path to a potential Dev Plugin.\nDid you mean to enter it as a custom plugin repository in the fields below instead?");
+                Task.Delay(5000).ContinueWith(t => this.devPluginLocationAddError = string.Empty);
+            }
             else
             {
                 this.devPluginLocations.Add(new DevPluginLocationSettings
@@ -183,4 +195,7 @@ public class DevPluginsSettingsEntry : SettingsEntry
             ImGuiHelpers.SafeTextColoredWrapped(new Vector4(1, 0, 0, 1), this.devPluginLocationAddError);
         }
     }
+
+    private static bool ValidDevPluginPath(string path)
+        => Path.IsPathRooted(path) && (Path.GetExtension(path) == ".dll" || !Path.Exists(path) || Directory.Exists(path));
 }
diff --git a/Dalamud/Interface/Internal/Windows/Settings/Widgets/ThirdRepoSettingsEntry.cs b/Dalamud/Interface/Internal/Windows/Settings/Widgets/ThirdRepoSettingsEntry.cs
index 3a1601e14..be2e34a57 100644
--- a/Dalamud/Interface/Internal/Windows/Settings/Widgets/ThirdRepoSettingsEntry.cs
+++ b/Dalamud/Interface/Internal/Windows/Settings/Widgets/ThirdRepoSettingsEntry.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
@@ -51,13 +51,14 @@ public class ThirdRepoSettingsEntry : SettingsEntry
 
     public override void Draw()
     {
-        ImGui.Text(Loc.Localize("DalamudSettingsCustomRepo", "Custom Plugin Repositories"));
+        using var id = ImRaii.PushId("thirdRepo");
+        ImGui.TextUnformatted(Loc.Localize("DalamudSettingsCustomRepo", "Custom Plugin Repositories"));
         if (this.thirdRepoListChanged)
         {
             using (ImRaii.PushColor(ImGuiCol.Text, ImGuiColors.HealerGreen))
             {
                 ImGui.SameLine();
-                ImGui.Text(Loc.Localize("DalamudSettingsChanged", "(Changed)"));
+                ImGui.TextUnformatted(Loc.Localize("DalamudSettingsChanged", "(Changed)"));
             }
         }
 
@@ -77,20 +78,20 @@ public class ThirdRepoSettingsEntry : SettingsEntry
 
         ImGui.Separator();
 
-        ImGui.Text("#");
+        ImGui.TextUnformatted("#");
         ImGui.NextColumn();
-        ImGui.Text("URL");
+        ImGui.TextUnformatted("URL");
         ImGui.NextColumn();
-        ImGui.Text("Enabled");
+        ImGui.TextUnformatted("Enabled");
         ImGui.NextColumn();
-        ImGui.Text(string.Empty);
+        ImGui.TextUnformatted(string.Empty);
         ImGui.NextColumn();
 
         ImGui.Separator();
 
-        ImGui.Text("0");
+        ImGui.TextUnformatted("0");
         ImGui.NextColumn();
-        ImGui.Text("XIVLauncher");
+        ImGui.TextUnformatted("XIVLauncher");
         ImGui.NextColumn();
         ImGui.NextColumn();
         ImGui.NextColumn();
@@ -103,10 +104,10 @@ public class ThirdRepoSettingsEntry : SettingsEntry
         {
             var isEnabled = thirdRepoSetting.IsEnabled;
 
-            ImGui.PushID($"thirdRepo_{thirdRepoSetting.Url}");
+            id.Push(thirdRepoSetting.Url);
 
             ImGui.SetCursorPosX(ImGui.GetCursorPosX() + (ImGui.GetColumnWidth() / 2) - 8 - (ImGui.CalcTextSize(repoNumber.ToString()).X / 2));
-            ImGui.Text(repoNumber.ToString());
+            ImGui.TextUnformatted(repoNumber.ToString());
             ImGui.NextColumn();
 
             ImGui.SetNextItemWidth(-1);
@@ -123,6 +124,11 @@ public class ThirdRepoSettingsEntry : SettingsEntry
                     this.thirdRepoAddError = Loc.Localize("DalamudThirdRepoExists", "Repo already exists.");
                     Task.Delay(5000).ContinueWith(t => this.thirdRepoAddError = string.Empty);
                 }
+                else if (!ValidThirdPartyRepoUrl(url))
+                {
+                    this.thirdRepoAddError = Loc.Localize("DalamudThirdRepoNotUrl", "The entered address is not a valid URL.\nDid you mean to enter it as a DevPlugin in the fields above instead?");
+                    Task.Delay(5000).ContinueWith(t => this.thirdRepoAddError = string.Empty);
+                }
                 else
                 {
                     thirdRepoSetting.Url = url;
@@ -145,7 +151,7 @@ public class ThirdRepoSettingsEntry : SettingsEntry
                 repoToRemove = thirdRepoSetting;
             }
 
-            ImGui.PopID();
+            id.Pop();
 
             ImGui.NextColumn();
             ImGui.Separator();
@@ -162,7 +168,7 @@ public class ThirdRepoSettingsEntry : SettingsEntry
         }
 
         ImGui.SetCursorPosX(ImGui.GetCursorPosX() + (ImGui.GetColumnWidth() / 2) - 8 - (ImGui.CalcTextSize(repoNumber.ToString()).X / 2));
-        ImGui.Text(repoNumber.ToString());
+        ImGui.TextUnformatted(repoNumber.ToString());
         ImGui.NextColumn();
         ImGui.SetNextItemWidth(-1);
         ImGui.InputText("##thirdRepoUrlInput", ref this.thirdRepoTempUrl, 300);
@@ -177,6 +183,11 @@ public class ThirdRepoSettingsEntry : SettingsEntry
                 this.thirdRepoAddError = Loc.Localize("DalamudThirdRepoExists", "Repo already exists.");
                 Task.Delay(5000).ContinueWith(t => this.thirdRepoAddError = string.Empty);
             }
+            else if (!ValidThirdPartyRepoUrl(this.thirdRepoTempUrl))
+            {
+                this.thirdRepoAddError = Loc.Localize("DalamudThirdRepoNotUrl", "The entered address is not a valid URL.\nDid you mean to enter it as a DevPlugin in the fields above instead?");
+                Task.Delay(5000).ContinueWith(t => this.thirdRepoAddError = string.Empty);
+            }
             else
             {
                 this.thirdRepoList.Add(new ThirdPartyRepoSettings
@@ -196,4 +207,8 @@ public class ThirdRepoSettingsEntry : SettingsEntry
             ImGuiHelpers.SafeTextColoredWrapped(new Vector4(1, 0, 0, 1), this.thirdRepoAddError);
         }
     }
+
+    private static bool ValidThirdPartyRepoUrl(string url)
+        => Uri.TryCreate(url, UriKind.Absolute, out var uriResult)
+        && (uriResult.Scheme == Uri.UriSchemeHttps || uriResult.Scheme == Uri.UriSchemeHttp);
 }