# Switched to FireFox, Extensions not Extending

**URL:** <https://boards.straightdope.com/t/switched-to-firefox-extensions-not-extending/293004>\
**Category:** Factual Questions\
**Created:** [March 5, 2005, 12:43am UTC](https://boards.straightdope.com/t/switched-to-firefox-extensions-not-extending/293004 "2005-03-05T00:43:16Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![davmilasav](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@davmilasav](https://boards.straightdope.com/u/davmilasav)\
**Post date:** [March 5, 2005, 12:43am UTC](https://boards.straightdope.com/t/switched-to-firefox-extensions-not-extending/293004/1 "2005-03-05T00:43:16Z")

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After reading the article in **Wired** magazine I decided to ditch MSIE and switch to FireFox. I love it! I maybe see 10 popups a day instead of 10 popups a minute!

I’ve had nothing but good luck with FF except that I must be doing something wrong with the extensions I’ve downloaded. Some of them won’t work. I dl’ed new themes and they won’t install. The weather program is peachy but the new 1.0.1 version of the browser won’t install and neither will the program allowing me to edit my Yahoo!Mail.

Any FF wizards out there? Computer specs available on demand.

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**Author:** ![633squadron](https://avatars.discourse-cdn.com/v4/letter/6/ee59a6/32.png) [@633squadron](https://boards.straightdope.com/u/633squadron)\
**Post date:** [March 5, 2005, 3:10am UTC](https://boards.straightdope.com/t/switched-to-firefox-extensions-not-extending/293004/2 "2005-03-05T03:10:53Z")

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> [@davmilasav](#):
>
> After reading the article in **Wired** magazine I decided to ditch MSIE and switch to FireFox. I love it! I maybe see 10 popups a day instead of 10 popups a minute!
> 
> I’ve had nothing but good luck with FF except that I must be doing something wrong with the extensions I’ve downloaded. Some of them won’t work. I dl’ed new themes and they won’t install. The weather program is peachy but the new 1.0.1 version of the browser won’t install and neither will the program allowing me to edit my Yahoo!Mail.
> 
> Any FF wizards out there? Computer specs available on demand.

This isn’t enough information for me to tell you what’s wrong.

What happens, exactly? Does the installation process just stop, or do the extensions install but not work? Same with the themes.

Ensure you have the latest FF installed, then install one of the extensions, and see if it works. Remember you have to restart FF to enable an extension.

If you’ve previously downloaded/installed FF, uninstall it and wipe it off your disk.

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**Author:** ![jmizzou](https://avatars.discourse-cdn.com/v4/letter/j/edb3f5/32.png) [@jmizzou](https://boards.straightdope.com/u/jmizzou)\
**Post date:** [March 5, 2005, 3:22am UTC](https://boards.straightdope.com/t/switched-to-firefox-extensions-not-extending/293004/3 "2005-03-05T03:22:12Z")

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This gets me _every_ time, so I think I know what the problem is.

For Firefox, the default setting is to _not_ allow webpages to install software - it doesn’t even ask (a good thing, IMO). Instead, you will see a little yellow bar across the top of the page, saying that Firefox has prevented the installation. There will be a little button on the right side, and clicking that will bring up a list of websites you’ve allowed to install software. It will also allow you to add the current site to that list, and you should be able to install the extension after doing that.

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**Author:** ![rfgdxm](https://avatars.discourse-cdn.com/v4/letter/r/c0e974/32.png) [@rfgdxm](https://boards.straightdope.com/u/rfgdxm)\
**Post date:** [March 5, 2005, 4:05am UTC](https://boards.straightdope.com/t/switched-to-firefox-extensions-not-extending/293004/4 "2005-03-05T04:05:39Z")

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> [@davmilasav](#):
>
> After reading the article in **Wired** magazine I decided to ditch MSIE and switch to FireFox. I love it! I maybe see 10 popups a day instead of 10 popups a minute!

Why not just use what I use to get rid of all IE pop-ups?

[http://toolbar.google.com/](http://toolbar.google.com/)

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**Author:** ![Dragoness](https://avatars.discourse-cdn.com/v4/letter/d/c0e974/32.png) [@Dragoness](https://boards.straightdope.com/u/Dragoness)\
**Post date:** [March 5, 2005, 5:00am UTC](https://boards.straightdope.com/t/switched-to-firefox-extensions-not-extending/293004/5 "2005-03-05T05:00:03Z")

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The thing that messed with me earlier- go Tools-\> options-\> web features and make sure “allow web sites to install software” is checked. Then install your extentions, restart firefox, and remember to uncheck it, cause that should be off by default. Then again, if some are working and some aren’t, I don’t know if that’s your problem.
