You can check this article.
Is this about extensions in the Extensions button drop-down or about extension you placed on the toolbar ?
Do the extension show as enabled in the extension manager (about:addons page)?
In case you use Private Browsing mode, check this article.
You can check this article.
*https://support.mozilla.org/en-US/kb/extensions-button
Is this about extensions in the Extensions button drop-down or about extension you placed on the toolbar ?
Do the extension show as enabled in the extension manager (about:addons page)?
In case you use Private Browsing mode, check this article.
*https://support.mozilla.org/en-US/kb/extensions-private-browsing
