Which is the best of these 3 add-on "user aget switcher" ?

[User808]

Hi. I like to know which of the following 3 user agent switcher add-on for Firefox is the best one:

https://addons.mozilla.org/en-US/fir...ed/?src=search

https://addons.mozilla.org/en-US/fir...er/?src=search

https://addons.mozilla.org/en-US/fir...er/?src=search

The 3rd one attract me due to the address exception feature & various modes of action. But from version number & user review it seem that 2nd one is more mature ? I'm not sure.

Any one can help please.

[bedawi]

How is your question related to Fedora?

[smr54]

These forums allow general computer questions.

[User808]

I test all them. The 1st was bad due to it's failure to hide operating system. It only change browser okay.

The 2nd & 3rd both working okay.

The 3rd seem to be the best because it including blacklist & whitelist modes .......

[User808]

Only one question: any string to change my real system it will started by "Mozilla 5.0/................" like "Mozilla 5.0/ (Windows NT .........) ............."
Is this normal or considered a leak & reflects a defect in action ? Please notice that this is the same case with 2nd add-on not only in 3rd one that I'm currently using.
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Edit: it seem that, currently, the "blacklist mode" feature not working & has a bug need fixation. I opened a ticket at:
https://github.com/ray-lothian/UserA...cher/issues/29