diff --git a/models/post/post.go b/models/post/post.go
index 982c748..5ef2166 100644
--- a/models/post/post.go
+++ b/models/post/post.go
@@ -28,6 +28,8 @@ type Post struct {
 
 	Replies []reply.Reply
 
+	URL string
+
 	SysIDX int
 }
 
diff --git a/system/discourse/discourse.go b/system/discourse/discourse.go
index 62b6ba9..076c64c 100644
--- a/system/discourse/discourse.go
+++ b/system/discourse/discourse.go
@@ -202,6 +202,9 @@ func (sys *System) ListPosts(forumID string) ([]post.Post, error) {
 			}
 		}
 
+		cfg := sys.GetConfig()
+		baseURL := cfg["url"].(string)
+
 		models = append(models, post.Post{
 			ID: strconv.Itoa(i.ID),
 
@@ -227,6 +230,8 @@ func (sys *System) ListPosts(forumID string) ([]post.Post, error) {
 				SysIDX: sys.ID,
 			},
 
+			URL: fmt.Sprintf("%s/t/%d", baseURL, i.ID),
+
 			SysIDX: sys.ID,
 		})
 	}
diff --git a/system/hackernews/hackernews.go b/system/hackernews/hackernews.go
index 8fc1d5e..26a5e62 100644
--- a/system/hackernews/hackernews.go
+++ b/system/hackernews/hackernews.go
@@ -214,6 +214,8 @@ func (sys *System) ListPosts(forumID string) ([]post.Post, error) {
 
 			Replies: replies,
 
+			URL: fmt.Sprintf("https://news.ycombinator.com/item?id=%d", i.ID),
+
 			SysIDX: sys.ID,
 		})
 	}
diff --git a/system/lemmy/lemmy.go b/system/lemmy/lemmy.go
index 22585d1..f94ed14 100644
--- a/system/lemmy/lemmy.go
+++ b/system/lemmy/lemmy.go
@@ -167,6 +167,9 @@ func (sys *System) ListPosts(forumID string) ([]post.Post, error) {
 		return []post.Post{}, err
 	}
 
+	cfg := sys.GetConfig()
+	baseURL := cfg["url"].(string)
+
 	var models []post.Post
 	for _, i := range resp.Posts {
 		t := "post"
@@ -211,6 +214,8 @@ func (sys *System) ListPosts(forumID string) ([]post.Post, error) {
 				SysIDX: sys.ID,
 			},
 
+			URL: fmt.Sprintf("%s/post/%d", baseURL, i.Post.ID),
+
 			SysIDX: sys.ID,
 		})
 	}
diff --git a/system/lobsters/lobsters.go b/system/lobsters/lobsters.go
index 64146d6..997b641 100644
--- a/system/lobsters/lobsters.go
+++ b/system/lobsters/lobsters.go
@@ -175,6 +175,8 @@ func (sys *System) ListPosts(forumID string) ([]post.Post, error) {
 				SysIDX: sys.ID,
 			},
 
+			URL: i.ShortIDURL,
+
 			SysIDX: sys.ID,
 		})
 	}
diff --git a/ui/windows/postshow/handlers.go b/ui/windows/postshow/handlers.go
index 5311fb6..262060c 100644
--- a/ui/windows/postshow/handlers.go
+++ b/ui/windows/postshow/handlers.go
@@ -9,6 +9,7 @@ import (
 	"github.com/mrusme/gobbs/models/post"
 	"github.com/mrusme/gobbs/ui/cmd"
 	"github.com/mrusme/gobbs/ui/windows/postcreate"
+	"github.com/pkg/browser"
 )
 
 func handleReply(mi interface{}) (bool, []tea.Cmd) {
@@ -25,8 +26,12 @@ func handleReply(mi interface{}) (bool, []tea.Cmd) {
 			cmd.MsgError,
 			WIN_ID,
 			cmd.Arg{
-				Name:  "error",
-				Value: errors.New("This system doesn't support replies yet!"),
+				Name: "error",
+				Value: errors.New(
+					"This system doesn't support replies yet!\n" +
+						"However, you can use `o` to open this post in your browser and " +
+						"reply there!",
+				),
 			},
 		).Tea())
 		return true, cmds
@@ -84,6 +89,27 @@ func handleReply(mi interface{}) (bool, []tea.Cmd) {
 	return true, cmds
 }
 
+func handleOpen(mi interface{}) (bool, []tea.Cmd) {
+	var m *Model = mi.(*Model)
+	var cmds []tea.Cmd
+
+	openURL := m.activePost.URL
+	if err := browser.OpenURL(openURL); err != nil {
+		m.ctx.Logger.Error(err)
+		cmds = append(cmds, cmd.New(
+			cmd.MsgError,
+			WIN_ID,
+			cmd.Arg{
+				Name:  "error",
+				Value: err,
+			},
+		).Tea())
+		return true, cmds
+	}
+
+	return true, cmds
+}
+
 func handleNumberKeys(mi interface{}, n int8) (bool, []tea.Cmd) {
 	var m *Model = mi.(*Model)
 	var cmds []tea.Cmd
diff --git a/ui/windows/postshow/postshow.go b/ui/windows/postshow/postshow.go
index d3a84a5..f96f24c 100644
--- a/ui/windows/postshow/postshow.go
+++ b/ui/windows/postshow/postshow.go
@@ -60,6 +60,7 @@ func NewModel(c *ctx.Ctx) Model {
 	}
 
 	m.tk.KeymapAdd("reply", "reply (prefix with #, e.g. '2r')", "r")
+	m.tk.KeymapAdd("open", "open", "o")
 
 	m.a, _ = aggregator.New(m.ctx)
 
@@ -70,6 +71,10 @@ func NewModel(c *ctx.Ctx) Model {
 				ID:      "reply",
 				Handler: handleReply,
 			},
+			{
+				ID:      "open",
+				Handler: handleOpen,
+			},
 		},
 		OnAnyNumberKey:      handleNumberKeys,
 		OnAnyUncaughtKey:    handleUncaughtKeys,