Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of DeepFlow Translator

DeepFlow Translator by lacique77

Translate web pages with DeepL API - see character count before translating. Translate web pages and documents using DeepL API, with live character count and a dedicated document translation center.

0 (0 reviews)0 (0 reviews)
1 User1 User
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
Translate selection of a text inlineOptions page, allows you to change certain properties to make use of translator more comfortably like using only certain list of language that you use often.You can translate list of files, you can see how much estimated characters will be usedSelect a text and then translate text in the editor
About this extension
DeepFlow Translator lets you translate web pages, selected text, and documents using the DeepL API, while showing you how many characters you will use before translating.

Features
  • Translate selected text or entire web pages via a simple toolbar popup.
  • Translate documents through a dedicated document center with drag-and-drop support.
  • See a live character count before sending text to DeepL, so you can manage your API usage.
  • Support for both DeepL free and DeepL Pro API endpoints (user provides their own API key).
  • Remember your preferred source and target languages and other settings.

How it works
  1. Open the extension’s options page and enter your DeepL API key.
  2. Visit any web page and click the DeepFlow Translator toolbar button.
  3. Choose source and target languages and click Translate.
  4. For documents, open the document center, drop a file, and translate it via DeepL.

Data & privacy
  • Page text and document contents are sent only to DeepL’s API for translation when you request it.
  • Your DeepL API key and preferences are stored locally in the browser’s extension storage.
  • The extension does not include analytics or tracking, and it does not sell or share your data.
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Download files and read and modify the browser’s download history
  • Access browser tabs
  • Access your data for all websites

Required data collection, according to the developer:

  • Website content
Learn more
More information
Add-on Links
  • Support Email
Version
1.0.3
Size
180.8 KB
Last updated
5 days ago (Dec 9, 2025)
Related Categories
  • Search Tools
  • Language Support
License
All Rights Reserved
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • search
  • translate
  • word counter
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.