Napoleon died in 1821. For French ambitions on German territory alone there was the Rhine crisis of 1840 [1], the Franco-Prussian War of 1870 [2], followed by French Revanchism [3] over the loss of Alsace-Lorraine, which they regained in WWI with the Treaty of Versailles. In 1923 there was the Occupation of the Ruhr [4]. Then in the aftermath of WWII France tried to take the Saar Protectorate, but with the EU slowly taking shape with the formation of the ECSC and the EEC instead a referendum happened and the territory went back to Germany.
Maybe notions of owning all of Europe ceased with Napoleon, but France trying to extend its borders Eastwards was happening right until the EU took shape.
1: https://en.wikipedia.org/wiki/Rhine_crisis
2: https://en.wikipedia.org/wiki/Franco-Prussian_War
3: https://en.wikipedia.org/wiki/Revanchism
4: https://en.wikipedia.org/wiki/Occupation_of_the_Ruhr
5: https://en.wikipedia.org/wiki/Saar_Protectorate