Broadly used add-ons are usually prepared well in advance, and tested with beta releases. Unfortunately, many arent updated right away and others not at all. Because we refuse to let our extensions die, were going to take a look at a workaround which may also work for you. For reference, Ill be using Firefox version 3.5 with Google Gears 0.5.23.0 which is incompatible.
Now, there are two methods of forcing your old add-ons to work; one requires you to download an extension and is easier the other needs nothing but elbow grease and guts. If the first sounds more appealing, head on over to the add-ons page and install Nightly Tester Tools. For the second method, skip the next paragraph.
Extra add-on: After adding Nightly Tester Tools to Firefox, it should restart the program and automatically open your add-ons window. If not, head to Tools > Add-ons.
Finding your defunct extension should be easy enough. Right click on it, and opt to Override compatibility. Youll be warned about the numerous potential side-effects of forcing your add-on to work, and if youre okay with proceeding, choose Force Install. Restart Firefox, and your stubborn add-on should be enabled.
Elbow grease: Now, I understand if you already have seventeen add-ons and you dont want another. Roll up your sleeves and open Firefox.
In the address bar, enter about:config (minus the quotes). Click through the warning, right click somewhere on the lower window and create a new Boolean (New > Boolean). When prompted, enter the value extensions.checkCompatibility (again, no quotes).
Youll be asked to choose false or true you want false. Restart your browser and you should be able to enable or install any incompatible add-on you want.
It should be added that forcing any given add-on to "work" with the latest version of Firefox does not guarantee it will function properly. In fact, depending on the add-on the result will vary considerably, from perfectly stable to totally buggy. Good luck.
Did you know?
The original Firefox logo was derived from Daniel Burka's recollection of an image from his childhood bible.
Top image by Foomandoonian.
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