- Add UTM params to all cloud-bound links across README, CLI, and error messages
- Rewrite README Open Source vs Cloud section: position cloud browsers as
recommended pairing for OSS users, remove separate Use Both section
- Rewrite error messages for use_cloud=True and ChatBrowserUse() to clearly
state what is wrong and what to do next
- Add missing URLs: invalid API key now links to key page, insufficient
credits now links to billing page
- Add cloud browser nudge on captcha detection (logger.warning)
- Add cloud browser nudge on local browser launch failure
BrowserSession.on_BrowserStopEvent calls stop_browser() but never calls
_cloud_browser_client.close(), leaving the httpx connection pool alive.
On Lambda provisioned concurrency, these pools accumulate across
invocations — memory climbs from ~1.3GB to the 3GB ceiling over hours,
triggering OOM kills (21 Runtime.ExitError crashes in 6 hours observed
in production).
Changes:
- Call _cloud_browser_client.close() in on_BrowserStopEvent after
stop_browser completes (in a finally block so it runs even if
stop_browser fails)
- Make CloudBrowserClient.close() idempotent (check is_closed before
calling aclose) so it's safe to call multiple times
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add nav_timeout parameter to navigate_to_url_and_wait() method
- Pass nav_timeout from NavigateToUrlEvent to control CDP navigation timeout
- Fix issue where TIMEOUT_NavigateToUrlEvent env var only controlled outer timeout but CDP call had hardcoded 20s timeout
- Add comprehensive test case to verify env var controls CDP timeout
- Updated the BrowserSession class to ensure the User-Agent header is set correctly for both local and remote connections.
- Introduced a utility function to retrieve the browser-use version and incorporated it into the User-Agent string.
- Ensured headers are consistently handled as dictionaries to avoid potential issues with None values.
This change improves the reliability of the CDP client communication by providing a proper User-Agent, which can be crucial for certain web interactions.
- Add `browser-use upload <index> <path>` command for uploading files to
file input elements via the CLI
- Extract find_file_input_near_element from nested closures in tools/service.py
to a reusable method on BrowserSession, deduplicating two copies
- Add BrowserWrapper.upload() for the Python REPL
- Resolve file paths to absolute on the client side before sending to daemon
- Update SKILL.md files and README with upload command docs
The circuit breaker and agent error handler were using a hardcoded 20s
timeout, but the worst-case auto-reconnect window is ~48s (3 attempts *
15s + 7s delays). Handlers would raise ConnectionError while reconnection
was still in progress. Now both use BrowserSession.RECONNECT_WAIT_TIMEOUT
(54s) derived from the actual reconnect parameters.
Address review feedback: trust_env=False now only applies to localhost/127.0.0.1/::1.
Remote CDP URLs will still respect HTTP_PROXY/HTTPS_PROXY environment variables.
On Windows with HTTP_PROXY/HTTPS_PROXY env vars set, httpx respects
these for localhost requests, causing 502 responses when querying
the CDP /json/version endpoint.
Adding trust_env=False prevents httpx from using proxy env vars,
ensuring localhost CDP communication works regardless of system
proxy configuration.
- auto-detects chrome executable and user data dir on macos/windows/linux
- auto-selects first available profile if none specified
- added Browser.list_chrome_profiles() to see available profiles
- updated examples to prompt user for profile selection
- fixed missing browser.stop() in save_cookies.py
laithrw