2 files changed, 8 insertions, 5 deletions
diff --git a/src/background/usecases/CompletionsUseCase.ts b/src/background/usecases/CompletionsUseCase.ts
index ae1ceed..7f6322e 100644
--- a/src/background/usecases/CompletionsUseCase.ts
+++ b/src/background/usecases/CompletionsUseCase.ts
@@ -52,13 +52,15 @@ export default class CompletionsUseCase {
         if (engines.length > 0) {
           groups.push({ name: 'Search Engines', items: engines });
         }
-      } else if (c === 'h') {
+        // browser.history not supported on Android
+      } else if (c === 'h' && typeof browser.history === "object") {
         // eslint-disable-next-line no-await-in-loop
         let histories = await this.queryHistoryItems(name, keywords);
         if (histories.length > 0) {
           groups.push({ name: 'History', items: histories });
         }
-      } else if (c === 'b') {
+        // browser.bookmarks not supported on Android
+      } else if (c === 'b' && typeof browser.bookmarks === "object") {
         // eslint-disable-next-line no-await-in-loop
         let bookmarks = await this.queryBookmarkItems(name, keywords);
         if (bookmarks.length > 0) {
diff --git a/src/background/usecases/LinkUseCase.ts b/src/background/usecases/LinkUseCase.ts
index 2f4df7b..21cf0e7 100644
--- a/src/background/usecases/LinkUseCase.ts
+++ b/src/background/usecases/LinkUseCase.ts
@@ -12,8 +12,9 @@ export default class LinkUseCase {
   }
 
   openNewTab(url: string, openerId: number, background: boolean): Promise<any> {
-    return this.tabPresenter.create(url, {
-      openerTabId: openerId, active: !background
-    });
+    // openerTabId not supported on Android
+    let properties = typeof browser.tabs.Tab === "object" ?
+      { openerTabId: openerId, active: !background } : { active: !background };
+    return this.tabPresenter.create(url, properties);
   }
 }