1 files changed, 14 insertions, 14 deletions

diff --git a/src/background/tabs.js b/src/background/tabs.js
index 617909e..efecdc4 100644
--- a/src/background/tabs.js
+++ b/src/background/tabs.js
@@ -1,9 +1,9 @@
 const closeTab = (id) => {
-  browser.tabs.remove(id);
+  return browser.tabs.remove(id);
 };
 
 const reopenTab = () => {
-  browser.sessions.getRecentlyClosed({
+  return browser.sessions.getRecentlyClosed({
     maxResults: 1
   }).then((sessions) => {
     if (sessions.length === 0) {
@@ -11,15 +11,15 @@ const reopenTab = () => {
     }
     let session = sessions[0];
     if (session.tab) {
-      browser.sessions.restore(session.tab.sessionId);
+      return browser.sessions.restore(session.tab.sessionId);
     } else {
-      browser.sessions.restore(session.window.sessionId);
+      return browser.sessions.restore(session.window.sessionId);
     }
   });
 };
 
 const selectAt = (index) => {
-  chrome.tabs.query({ currentWindow: true }, (tabs) => {
+  return browser.tabs.query({ currentWindow: true }, (tabs) => {
     if (tabs.length < 2) {
       return;
     }
@@ -27,12 +27,12 @@ const selectAt = (index) => {
       throw new RangeError(`tab ${index} does not exist`)
     }
     let id = tabs[index].id;
-    chrome.tabs.update(id, { active: true })
+    return browser.tabs.update(id, { active: true })
   });
 };
 
 const selectByKeyword = (keyword) => {
-  chrome.tabs.query({ currentWindow: true }, (tabs) => {
+  return browser.tabs.query({ currentWindow: true }).then((tabs) => {
     let matched = tabs.filter((t) => {
       return t.url.includes(keyword) || t.title.includes(keyword)
     })
@@ -43,34 +43,34 @@ const selectByKeyword = (keyword) => {
       throw new RangeError('More than one match for ' + keyword);
     }
 
-    chrome.tabs.update(matched[0].id, { active: true });
-  })
+    return browser.tabs.update(matched[0].id, { active: true });
+  });
 }
 
 const selectPrevTab = (current, count) => {
-  chrome.tabs.query({ currentWindow: true }, (tabs) => {
+  return browser.tabs.query({ currentWindow: true }, (tabs) => {
     if (tabs.length < 2) {
       return;
     }
     let select = (current - count) % tabs.length
     let id = tabs[select].id;
-    chrome.tabs.update(id, { active: true })
+    return browser.tabs.update(id, { active: true })
   });
 };
 
 const selectNextTab = (current, count) => {
-  chrome.tabs.query({ currentWindow: true }, (tabs) => {
+  return browser.tabs.query({ currentWindow: true }, (tabs) => {
     if (tabs.length < 2) {
       return;
     }
     let select = (current + count + tabs.length) % tabs.length
     let id = tabs[select].id;
-    chrome.tabs.update(id, { active: true })
+    return browser.tabs.update(id, { active: true })
   });
 };
 
 const reload = (current, cache) => {
-  browser.tabs.reload(
+  return browser.tabs.reload(
     current.id,
     { bypassCache: cache }
   );