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Measured by Add-on Memory:
667.1 KB for User Agent Quick Switch
62.4 KB for User Agent Overrider
The "user agent button in the addon bar" button never appears, even after restarting firefox.
Simple and works perfectly
working perfect, thank you very much :)
It works, I tried it quickly. May have been better if it suggests some UAS to try
Homesite both within UI & this page is apparently wrong it is giving https://builder.addons.mozilla.org/addon/1031459/latest/
the best for this sort of task.
easy, without useless things added, fast.
On a previous review of mine, I gave this 5 stars. Unfortunately, I found a bug that rendered it useless. After many months using UAQS, suddenly, its icon disappeared. I tried to disable/re-enable it, then I tried to uninstall/reinstall it, then I tried to restore default customization (what was my last resort, I was not going to reset Firefox just to get a single add-on back). In-between them, of course, I restarted Firefox a lot, even tried to look on its "do not edit" configuration files on profiles' directory to hopefully get it working, but all for nothing. Now my Firefox is all misconfigured and no UAQS icon anywhere. Searching for other add-ons to replace UAQS, I discovered that it's a common bug. It happens when the programmer misplaces the icon anchor. Well, I hope this add-on is fixed soon, because as it is, it is useless (actually, it becomes useless after some customization sessions...)
i m not able to see this user agent ..though it displaying tht its already been added..i m getting irritated can some body help me ..its urgent i need it
Mozilla/5.0 (Windows NT 6.1; Win64; x64; zh-CN; rv:18.0) Gecko/20130119 Firefox/18.0
It is work.