Clear Browsing Data is a Firefox extension which enables you to delete browsing data, such as cookies, history and cache, directly from the browser toolbar. The toolbar button can be configured to clear all browsing data with a single click, or to show a list of data types available for clearing. The continued development of Clear Browsing Data is made possible thanks to the support of awesome backers. If you'd like to join them, please consider contributing with Patreon, PayPal or Bitcoin. The extension also supports closing and reloading tabs, these features can be configured from the extension's options. Supported data types:

Cookies
Browsing history
Cached images and files
Autofill form data
Download history
Service Workers
Plugin data
Saved passwords
IndexedDB data
Local storage data

Clearable data types and their order can be customized from the extension's options. Relevant Firefox bugs:

Data saved with the Cache API is not cleared (1526246)
The HTTP authentication cache is not cleared (1535606)
Clearing downloads only removes them from the current session, downloads from previous sessions can be removed by clearing the history (1380445)
The cache and local storage are cleared entirely regardless of the requested time interval
Clearing the history also removes downloads and service workers

The extension is also available for Chrome and Edge. Reviews are not monitored for bug reports, please use GitHub for issues and feature requests. https://github.com/dessant/clear-browsing-data