问题
I visited https://addons.mozilla.org/en-US/firefox/addon/selenium-ide/
to install the latest Selenium IDE (v 2.9.1) in Firefox.
My Firefox version is 54 (64-bit) OS: Windows 10 Pro 64-bit (10.0, Build 14393)
But unfortunately "Add to Firefox" button was shown disabled on the site https://addons.mozilla.org/en-US/firefox/addon/selenium-ide/
On that site NOTE was found as: Note: Selenium IDE will NOT work on Firefox version 55 onwards. Please stay on Firefox version 54 or older.
What can I do to install Selenium IDE on FF 54?
回答1:
Sad but true, It is no secret by now that Selenium IDE will be deprecated. In fact, it has already stopped working since Firefox 55. Here are some potential replacements that you may consider applying to your project:
Robot Framework
Katalon Studio
Protractor
Good luck and Good bye Legend.
回答2:
I think Firefox is not supported Selenium IDE after 53 or 54 version, I have read that blog
https://seleniumhq.wordpress.com/2017/08/09/firefox-55-and-selenium-ide/
回答3:
Firefox 55 doesn't support Selenium IDE 2.9.1. FF 54 and less are OK.
Installation Selenium IDE on FF 54:
1. Open Firefox 54 and visit https://addons.mozilla.org/en-US/firefox/addon/selenium-ide/
2. Click "Download Anyway" link to download (In my case, it was selenium_ide-2.9.1-fx.xpi)
- Open .xpi file you download in Firefox 54 -> Click Install and then Restart Now according to following interface:
回答4:
I faced the similar issues few weeks ago.Firefox version 55 doesn't support Selenium IDE. You need to downgrade your Firefox browser to Firefox version 54, 53 or below. For doing so, please refer the link below
https://support.mozilla.org/en-US/kb/install-older-version-of-firefox
Also, you need to delete all your old firefox data before installing older version because it might not work if you don't do so.
Then finally you can add Selenium IDE and it works fine.
回答5:
I need to run Firefox 54 with Selenium but, like the others on this question, wasn't able to easily install Selenium. I did find a way to do this without going to a 3rd party site by copying the XPI download link (just right click on the disabled Add to Firefox button in the Firefox Add-ons page and copy the location), downloading it within Chrome or another browser, and finally just drag and drop the XPI into Firefox. That worked for me, hope this helps someone else.
来源：https://stackoverflow.com/questions/46168963/version-compatibility-of-firefox-and-the-latest-selenium-ide-2-9-1-1-signed