TechRaga

Gmail has a labs feature Tasks, which adds a to-do list to Gmail Window. gTask sidebar is a firefox add-on which will bring this task list in the  sidebar of Firefox.

If you are not using the Tasks labs feature, enable it from the Settings > Labs. You will notice a Tasks link in the Gmail navigation sidebar. You can add your tasks and manage them easily. To view them in the sidebar of Firefox, just install gTask sidebar add-on.

Moreover, You can also create a task from an email. Click on the More Actions menu and choose Add to Tasks when viewing an email. (see screenshot above)

Here is the gTask in action :

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