My recommendation

by Alshurafa

5 Add-ons in this Collection

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 336 reviews

157 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Toolbar Buttons by Button Guy

Rated 4 out of 5 stars 372 reviews

310 users

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Arabic spell-checking dictionary by Dan Kenigsberg

Rated 4 out of 5 stars 43 reviews

668 users

Arabic spell-checking dictionary for Firefox 3 and Thunderbird 3 from Ayaspell.

United States English Spellchecker by jooliaan

Rated 4 out of 5 stars 207 reviews

4,818 users

This dictionary is no longer maintained. Use this dictionary instead.

Forecastfox Weather by Ensolis

Rated 4 out of 5 stars 933 reviews

19 users

Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.

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