Hi @crudolf,
I understand how important it is for your cart and checkout experience to appear fully in French, and I can see that you have already taken several thoughtful steps to resolve this. It can feel confusing when a single button remains in English even after updating translations, clearing cache, and testing with different tools, and I am here to help you get clarity on what is happening.
To make sure we approach this correctly, can you confirm if this button used to display in French before and recently changed after an update, or if this is a new store setup that has never shown the translation as expected? This will help narrow down whether we are dealing with a regression from an update or something that has not been fully configured yet.
For context, the “Proceed to checkout” text can come from two different places in WooCommerce. Classic WooCommerce uses PHP template strings, while the newer Cart and Checkout blocks use JSON translation files that load differently. If your cart page is using blocks, the translation will depend on whether the WooCommerce Blocks package is fully translated and active on your site. You can review how the Cart and Checkout Blocks work here
https://woocommerce.com/document/woocommerce-store-editing/customizing-cart-and-checkout/checkout-block/
To move forward, please share your system status report through https://pastebin.com so I can check if the correct translation files are loading on your site and if anything stands out in your environment. A quick screenshot of your Cart page using https://snipboard.io would also help us see exactly which cart layout is rendering the button.
Once we have that, we can guide you with more precision. Looking forward to checking this with you.
It’s been a while since we heard back from you for this reason we are closing this thread.
If WooCommerce has been useful for your store and you appreciate the support you’ve received, we’d truly appreciate it if you could leave us a quick review here:
https://ww.wp.xz.cn/support/plugin/woocommerce/reviews/#new