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How to install older version? Ver36.

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I want to install older version. because latest version firefox often are not compatible with the Add on that I use. Turning on firefox auto update will ruin my add on compatibility. I had a problem with Youtube center add on because of this auto update. this add on is the main reason why i never wanted firefox auto update, and never updating firefox. I rather sacrifice security for the sake compatibility with add on.

at the moment I use Firefox ver 28. Which has compatibility with my add on. My add on latest update is on June 2015. So I thought to update Firefox to a version before that time. my choice is Firefox ver 36.

I want to install older version. because latest version firefox often are not compatible with the Add on that I use. Turning on firefox auto update will ruin my add on compatibility. I had a problem with Youtube center add on because of this auto update. this add on is the main reason why i never wanted firefox auto update, and never updating firefox. I rather sacrifice security for the sake compatibility with add on. at the moment I use Firefox ver 28. Which has compatibility with my add on. My add on latest update is on June 2015. So I thought to update Firefox to a version before that time. my choice is Firefox ver 36.

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You already posted with an older version.

Did you consider to install the Firefox 38.4.0 ESR release that still receives security updates?

Firefox 38.4.0 ESR:

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Note it is not Firefox that is made compatible with the thousand of Extensions but the other way. It is up to the Extension author to update if there changes in Firefox that affects it.

There is another similar extension that has been kept more up to date https://addons.mozilla.org/en-US/firefox/addon/youtube-control-center/

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@the-edmeister Thanks. I downloaded ver 35, 36, & 37

@cor-el I will try that version and used it if it compatible with Youtube center. add on.

@james I know that, it depend on the author. But i just can't give up youtube center. it skip the ad, disable DASH playback & prevent auto play. those are my complain to youtube.

that youtube control, does it disable DASH playback as well? I will switch to it if it does and will update firefox to the highest version, as long as it's still compatible.