Gmail Offline is a Gmail app that supports offline access to your Gmail account. It allows users to read, reply, search, and archive emails without network access. Gmail Offline app is available for Google Chrome browser only. You cannot use Firefox, Safari, Internet Explorer or Opera for this app.
Installing Gmail Offline
Step 1: Click here.
Step 2: Click the Add To Chrome button to add it as an app for your web browser.
Step 3: Click Add app. Wait for a few seconds and Gmail Offline extension will be added to your Google Chrome.
Step 4: Select Gmail.
Step 5: You will need to sign in to Gmail to allow Gmail offline.
Step 6: Choose Allow offline mail and click Continue.
Congratulations, now you can use the Gmail Offline app. After the first start-up, Gmail Offline will automatically synchronize messages. The Internet connection is required to complete this task. It will take some minutes to sync your emails and attachments.