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I need to roll back the 55.b2 version of the web developer browser to the previous version

  • 6 replies
  • 12 have this problem
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  • Last reply by Dwig

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Just upgraded to 55.b2 and some critical plugins are failing. They have been flagged as legacy. I need to roll back to the previous version but I am unable to find a website that has older versions. Everything wants to download the most recent version.

I find the website heavy on marketing and light on useful links and information. I am looking for a win-64 version of ff developer

55.a or 54.
Just upgraded to 55.b2 and some critical plugins are failing. They have been flagged as legacy. I need to roll back to the previous version but I am unable to find a website that has older versions. Everything wants to download the most recent version. I find the website heavy on marketing and light on useful links and information. I am looking for a win-64 version of ff developer 55.a or 54.

All Replies (6)

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The extensions that are marked as Legacy should still work.

Are there any errors in the Browser Console?

See also this pref:

  • extensions.allow-non-mpc-extensions = true

You can find them here:

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Thank you. The issue is I am using 'The Addon Bar (restored' and this extension does not work on the new release. As a result, all of my extensions associated with this bar were not loading.

Thanks for the link to the previous releases.

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I believe I read some where that 55 will have magor changes to addons and they will not be working and not be able to install a majority of them as going to a new way of doing things. This was released on the 14th if have not seen it: https://blog.mozilla.org/addons/2017/06/14/webextensions-firefox-55/

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Maybe try the Classic Theme Restorer extension.

  • you can check out the settings of the CTR extension via its "Options/Preferences" button on the "Tools -> Add-ons -> Extensions" page.
  • you can find extra toolbar buttons and more toolbar settings in Customize (3-bar Firefox menu button -> Customize)
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Not exactly the same problem but 55.0.2 is really lagging with menus and bookmark toolbar folders.

https://support.mozilla.org/en-US/questions/1171768

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I found that Session Manager was badly messed up with 55; it consistently added many blank tabs to a session, and when reloading a session, it appended the sessions' tabs rather than replacing the existing tabs.

Also, the status bar was empty, and Customize was unable to add "tools" to it. In addition, I was unable to exit Customize; the Exit button didn't respond to a click (I had moved a couple of my important tools to the address bar). I had to exit FF and restart, and then the tab bar had a few dozen empty tabs.

I've dropped back to 54.0.1 (64 bit), which is working fine.

Question: am I going to be stuck forever with 54, or will Customize and Session Manager be upgraded at some point? Or will I have to abandon FF and go to something like Opera?